From acbae71270860f667b9402ff72c901fe454c5e2d Mon Sep 17 00:00:00 2001 From: Magnus Woldrich Date: Fri, 14 Dec 2018 09:40:47 +0100 Subject: [PATCH] add somewhat clean dump of extensions from wiki --- wiki_fileext.md | 5072 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 5072 insertions(+) create mode 100644 wiki_fileext.md diff --git a/wiki_fileext.md b/wiki_fileext.md new file mode 100644 index 0000000..4558fec --- /dev/null +++ b/wiki_fileext.md @@ -0,0 +1,5072 @@ + +Ext. Description Used by +-------------------------------------------------------------- + +### Temporary file Program-dependent format +#24 Printer data file for 24-pin LocoScript + matrix printer +#IB Printer data file LocoScript +#nn Part of file image Long +#SC Printer data file LocoScript +#ST Standard mode printer LocoScript + definitions +$$$ OS/2 archive file (i.e. OS/2 + archives$.$$, keys$.$$) +$$$ Temporary file +$? ZX Spectrum file in HOBETA + format +$00 Pipe file DOS +$DB Database temporary file dBase +$O1 Pipe file DOS +$VM Virtual manager temporary file Windows 3.x +&01, +&02, Holdfast backup archive files Holdfast +etc +)2( LHA archiver temporary file LHA +??$ Backup file P-CAD + Expand. Note: ?? could be any first two + characters in a file extension (e.g. BM_ + for compressed bitmap (BMP), DL_ for +??_ Microsoft packed file compressed library, etc.) Files compressed + using this method have been in use on + Microsoft software CDs and floppies since + around 1995. +?DK Disk image Loaddskf.exe +?UT Nonpacked FTN mail (? - flavor) FidoNet +!qB Unfinished qBittorrent download qBittorrent +!ut Unfinished µTorrent download µTorrent +@@@ DOS 2.0 - 3.2 backup control DOS commands BACKUP and RESTORE + file +___ Adinf table Adinf +?Q? Squeeze CP/M and MS-DOS +~$~ Temporary file 1st Reader + Backup file (name is +~1~, constructed with numbered +~2~, backup option by appending ~, GNU coreutils (cp, install, ln, mv ), +etc. the incremented number, and Emacs + another ~ after the original + name) +~?? Old Backup files (.MNU to .~MN) Resource Workshop (Borland Delphi) +~H Cardfile heap AZZ Cardfile +μ Metrowerks Codewarrior project +Π THINK C project + + +0 Compressed harddisk data DoubleSpace +0B Printer font with lineDraw extended PageMaker + character set +001, FFSJ, HJSplit, JJSplit, split +002, Split parts of a single whole file (Unix) (when using numeric +... suffixes) +1 Fax (Many programs) +1 Roff/nroff/troff/groff source for manual cawf2.zip + page +123 Spreadsheet Lotus 1-2-3 version 9 and + version 97 + Autodesk 123D design file, a +123dx CAD drawing file ZIP file format package + containing a .sat file and .png + thumbnails.^[1] +15U Printer font with PI font set PageMaker +16 SYSLINUX Splash Screen Graphic SYSLINUX, XnView +1ST Usually README.1ST text file +1TX 1toX Logipole file +2GR 286 Grabber File Win +301 Fax Super FAX 2000 - Fax-Mail 96 +386 Intel 80386 processor driver Windows 3.x +386 Windows virtual device driver Win +3D Universal Combat 3D model file Universal Combat +3DMF QuickDraw 3D Metafile QuickDraw +3DS 3D Studio Graphics format 3D Studio +3DSX Nintendo 3DS Homebrew File Format Nintendo 3DS Homebrew Launcher +3DT Database in which the meta-data of a 3D 3D Topicscape + Topicscape is held +3DV 3-D wireframe graphics by Oscar Garcia 3dv wireframe viewer +3FX Effect CorelChart +3G2 Mobile Phone Video +3GA Mobile Phone Audio (Samsung) +3GP Mobile Phone Video +3GR 386 Grabber File Win +3T4 Binary file converter to ASCII Util3 +4DB 4D Structure File 4D +4DD 4D Data File 4D +4DIndy 4D Structure Index File 4D +4C$ Datafile 4Cast/2 +4MD Musical file +4SW 4DOS Swap File 4DOS +4TH FORTH source code file ForthCMP - LMI Forth +555 16 bit per pixel image file format (5bit Sierra Entertainment + per component) + Text (fairly simple format, plain text +602 with binary control commands embedded Text602 text processor by + within text lines and special formatting Software602 + commands on dedicated lines) +668 Music (the mixing is always at 12048 Hz) +669 Music (8 channels) The 669 Composer +6CM Music (6 Channel Module) Triton FastTracker +75 75×75 dpi display font Ventura Publisher + A compressed archive file format that +7z supports several different data 7-Zip + compression, encryption and + pre-processing algorithms +8 A86 assembler source code file +85 85×85 dpi display font Ventura Publisher +8BF Adobe Photoshop compatible filters/ + plugins +8BI Adobe Photoshop compatible filters/ + plugins +8BX Adobe Photoshop compatible filters/ + plugins +890 ScanTitling subtitle files +8CM Music (8 Channel Module) Triton FastTracker +8M Printer font with Math 8 extended PageMaker + character set +8U Printer font with Roman 8 extended PageMaker + character set +83p Executable program for TI-83 Graphing TI Connect + Calculator +89p Executable program for TI-89/89 Titanium TI Connect + Graphing Calculator +8xp Executable program for TI-83/84 Plus TI Connect + Graphing Calculator +91 91×91 dpi display font Ventura Publisher +96 96×96 dpi display font Ventura Publisher + +A ADA source code file +A Library Unix +A## AlZip Compressed Files' pieces +A11 Graphics AIIM image file +A2W World file for Alice programming Alice 2 + language, version 2 +A3P Project file for Alice programming Alice 3 + language, version 3 +A80 Assembler language source for 8080 +AA, AB, ... Split parts of a single whole file split (Unix) + Advanced Audio Coding, a standardized, +AAC lossy compression and encoding scheme + for digital audio +AAF AutoPatcher file + Advanced Authoring Format, an advanced +AAF media wrapper file for professional + applications +AAS Animation Play Script AAPlay +AB Android adb Backup adb +AB6 Datafile ABStat +AB8 Datafile ABStat + Many Computer Graphics +ABC Alembic - 3D geometry / models tools, see Alembic + (Computer Graphics) for a + list. +ABC Document ABC FlowCharter 1.0 +ABC Music in ABC format Mainly Video Games +ABP Data ABComp compressed +ABP AVS Barcode Profile AVS Barcode Source +ABF Adobe Binary Screen Font Adobe Systems Software +ABK Automatic backup file CorelDRAW +ABM Image PALS album file +ABM Album file (various programs) +ABR Adobe Brush file for PhotoShop PhotoShop +ABS Abstracts (info file) +ABS Data file Abscissa +AC Project backup Audit Command Language + (ACL) +ACA Project Project Manager Workbench +ACB Archive ACB +ACB see ACMB +ACC Program (DR-DOS - ViewMax) GEM / resident +ACCDA Data Microsoft Access Database + Wizard (Open XML) +ACCDB Data Microsoft Access Database + (Open XML) +ACCDE Data Microsoft Access Database + Wizard (Open XML) +ACCDT Data Microsoft Access Database + Template (Open XML) +ACCDU Data Microsoft Access Database + Wizard (Open XML) +ACCFT Microsoft Access Data Type Template^[1] Microsoft Access +ACDC layered graphics file ACDSee +ACDA ACDSee Action ACDSee +ACDAPK ACDSee Actions Pack ACDSee +ACE Archive ACE +ACF Adobe Custom Filter for PhotoShop PhotoShop +ACL Project Audit Command Language + (ACL) +ACL AutoCorrect List Microsoft Office +ACM Audio Compression Module add-on Win +ACMB Graphics file +ACO Adobe Color Palette Adobe +ACT ACTOR source code file ACTOR +ACT Animations Works Actor (Graphics cell) Animation Works +ACT FoxDoc Action Diagrams FoxPro +ACT Presentation Action! +AD AfterDark screensaver module AfterDark +AD2 ADPCM 2-bit compressed voice file ZFAX +AD3 ADPCM 3-bit compressed voice file ZFAX +ADA Ada source code file +ADB Ada Package Body +ADC Bitmap graphics (16 colors) Scanstudio +ADC Dictionary Lingvo +ADD OS/2 adapter device driver +ADEF Legato Application Definition Legato.io build tools + mkapp and mksys +ADF Amiga Disk File unADF, UAE, WinUAE etc... +ADG Data ADG 3D Scene +ADI Graphics file AutoCAD +ADI Database Index File Advantage Database Server +ADICHT LabChart data acquisition file ADInstruments +ADL MCA adapter description library QEMM +ADL ADONIS Definition Language file for ADONIS + exporting models and model groups +ADM After Dark support file AfterDark +ADM ADEM file format ADEM +ADI Database Memo File Advantage Database Server +ADN Add-in Lotus 1-2-3 +ADR After Dark support file AfterDark +ADS Ada Package Specification +ADSON Adsonica sound and image file Adsonica +ADT WoW geographical map location file Blizzard Entertainment + games (various) +ADT Datafile for cardfile application HP NewWave +ADT Abrechnungsdatentransfer, an xDT Healthcare providers in + application Germany +ADT Dictionary Lingvo +ADT Fax AdTech +ADI Database Table Advantage Database Server +ADV GUS device driver Gf166.com +ADX Document Archetype Designer +ADZ Amiga Disk Zipped (See Amiga Disk File) GZip +AEP After Effects Project File Adobe After Effects + File encrypted using the Advanced AES Crypt (Windows, Mac, +AES Encryption Standard (AES) Linux, Java) and Crypt4All + (Android) +AF2 Flowchart ABC FlowCharter 2.0 +AF3 Flowchart ABC FlowCharter 3.0 +AFI Truevision bitmap graphics +AFL Font file (for Always) Lotus 1-2-3 +AFM Datafile for cardfile application HP NewWave +AFM Type 1 font metric ASCII data for font ATM - many + installer +AFP Shape palette ABC FlowCharter +AFT Template ABC FlowCharter 3.0 +AFW Workplace ABC FlowCharter 3.0 +AGR ArcView ASCII grid +AHK AutoHotkey script file AutoHotkey +AI Adobe Illustrator Artwork Adobe Illustrator +AIF see AIFF +AIFC Audio Interchange File Format with + Compression +AIFF Audio Interchange File Format Convert (c) Villena +AiM Asm Text Mode Image File The Ultimate Draw +AIN Archive AIN +AIN Job schedule AutoIntern +AIO APL programming language file transfer + format file +AIR Adobe AIR installation package The Adobe AIR runtime + environment +AIS Array of Intensity Samples graphics file Xerox +AIX Datafile for cardfile application HP NewWave + Akai S5000 and S6000 +AKM "Akai Multitimbral" sample information hardware samplers (MS-DOS + file -based) and compatible + software samplers + Akai S5000 and S6000 +AKP "Akai Program" sample information file hardware samplers (MS-DOS + -based) and compatible + software samplers +ALC Molecular coordinates Alchemy, RasMol +ALG Activity Log ARCSOLO +ALG ER Mapper Algorithm ERViewer +ALE Avid Log Exchange (used in film & video Avid + editing) +ALL Arts & Letters symbol and font files Arts & Letters +ALL Filelist w/ all files FRQView +ALL Format file for working pages Always +ALL General printer information WordPerfect for Win +ALO Almanac support file +ALT Menu file WordPerfect Library +ALZ AlZip Compressed Files +AMD Maxum chromatograph offline database Siemens Maxum + Chromatograph +AMF Music (Advanced Module Format) DMP +AMF Additive Manufacturing File Format Computer Aided Design + Software +AMG Archive AMGC +AMG System image file ACTOR +AML AutomationML AutomationML Group +AMLX Compressed and packed AutomationML file AutomationML Group +AMPL AMPL source code file AMPL +AMR Audio format for mobile phones (Nokia, + SonyEricsson) +AMS Adobe Monitor Setup calibration file PhotoShop +AMS Music format +ANI Animation cursors for Win Win95 - WinNT +ANI Animation IconAuthor +ANM Animation Deluxe Paint Animator + Trainz Animation specification file, for +ANIM example a steam locomotive's connecting Trainz/Auran JET files + rod movements, or water movement on a + river or lake motion. (Obsolescent) +ANN Annotations of old Windows Help file Windows 3.0 - XP +Ann Multi volume ARJ archive ARJ +ANS ANSI character graphics (animation) file ANSView +ANS ASCII text ANSI character set NewWave Write +AOL America On-line for Windows DLL Win +AOS Add-On Software Nokia 9000 +AP Archive WHAP +AP Datafile Datalex EntryPoint 90 +APC Printer driver Lotus 1-2-3 +APD Printer driver Lotus 1-2-3 +APE Monkey's Audio (Lossless) audio media players +APF Printer driver Lotus 1-2-3 +API Adobe Printer Ink file for PhotoShop PhotoShop +API Passed parameter file 1st Reader +API Printer driver Lotus 1-2-3 +APK Android Application Android +APL APL work space format file +APL Support module used by Manugraphics APL + products +APL EV-Dos Application File +APL ACDSee plugin ACDSee +APM Authorware Macintosh Authorware +APP Add-in application file Symphony +APP Application object file dBASE Application + Generator +APP Application FoxPro +APP Application and Application Bundle Mac OS X +APP Executable workflow / macro file Automator +APP Executable application file DR-DOS - NeXTstep - Atari +APP Generated application FoxPro +APPLICATION ClickOnce Application Deployment Microsoft Windows + Manifest +APR Employee performance review Employee Appraiser +APW Authorware Windows Authorware +APX Appexpert database file Borland C++ 4.5 +AQF Analyzer Queries and Filters Actix +AR Argon - for 3D Modeling Ashlar-Vellum +AR7 Archive AR7 +ARC Archive ARC - PKARC/PKXARC - PKPAS + - PKUNPAK - QUARK +ARC Archive SQUASH +ARC Nintendo proprietary archive format Various Nintendo games +ARD Map Holux - Alan +ARF Automatic Response File +ARH Archivers definitions file DN +ARI Archive ARI +ARJ Archive ARJ - ARJZ +ARK ARC archive CP/M port of ARC file + archiver +ARK Archive QUARK +ARK Managing your Money Archive File +ARR Arrangement Atari Cubase +ART Gerber artwork Cadence Allegro +ART First Publisher, Designworks, All GST/Greenstreet Draw + Greenstreet Draw graphic file products +ART Graphics (scrapbook) Art Import +ART Graphics format (Another Ray Tracer) PFS:1st publisher - Art + Import +ARTX file format Artisteer +ARTX file format belightsoft Text Art +ARX Archive ARX +ASC ASCII text file +ASC Transport armor file PGP +ASD Autosave file Microsoft Word +ASD Presentation Astound +ASD Screen driver Lotus 1-2-3 +ASD Spectral Data Set ASD Inc. RS3 spectral + acquisition program +ASE Velvet Studio Sample AWAVE +ASE ASCII Scene Export 3D Studio +ASF Datafile (APL Shared File) STATGRAPHICS (APL*Plus/PC) +ASF Screen font Lotus 1-2-3 +ASF Advanced Streaming Format (Compressed Microsoft Corporation + Windows audio/video) +ASK SYSGEN answer file RT-11 +ASH Assembly language header file TASM 3.0 +ASI ASIC language source ASIC +ASI Assembler include file Turbo C - Borland C++ +ASM Assembler language source TASM, MASM, NASM, Yasm, + FASM +ASMX ASP.NET Web Service Microsoft Corporation +ASO Assembler object (object-oriented) file Turbo Assembler +ASP ASPECT source code file Procomm Plus +ASP Association of Shareware Professionals + OMBUDSMN.ASP notice +ASP Active Server Pages of Microsoft.Net Microsoft Corporation +ASPX ActiveX Server Pages of Microsoft.Net Microsoft Corporation +ASS Amalgam Scene Specification Halo 2 Map Editor +ASS Advanced SubStation Alpha (Subtitles) +AST Adobe Color Separation table for PhotoShop + PhotoShop +AST Nintendo proprietary music streaming Various Nintendo games + format +ASV Autosave File MATLAB +ASW Authorware Star Authorware +ASX Advanced Stream Redirector file, Microsoft Corporation + redirects to an ASF file (see ASF) +ASZ Skin AltDesk +AT2 Auto template Aldus Persuasion 2.0 + All Sony devices and +AT3 Atrac 3 Sound/music file programs with the Atrac 3+ + specification +ATM Adobe Type Manager data/info +ATML Awhcp HTML file +ATN Adobe Photoshop action Adobe Photoshop +ATT AT&T Group GCGW +ATTF AramOS TypeAtor Text File AramOS TypeAtor 1.0 + (Development State) +ATY Produced when an association type is 3D Topicscape + exported by 3D Topicscape +AU Sun/NeXT/DEC Audio file AWAVE, GoldWave +AU Sound (audio) file Sun Microsystems - Convert + (c) Villena +AUD Audio file AudioRack +AUP Audacity project file Audacity +AUS Kedit AutoSave file Kedit +AUX Auxiliary dictionary ChiWriter +AUX Auxiliary references TeX/LaTeX +AUZ Ableton Live File Authorization File for + Ableton Live +AVA Publication Avagio +AVB AntiViral Toolkit Pro Bases +AVI Audio Video Interleaved animation file Video for Windows +AVR Audio Visual Research AWAVE +AVS Audio Video Software AVS Video Editor (video + editing software) +AVT AVATAR-coding files A3E +AW Text file HP AdvanceWrite +AW Proprietry Nintendo wave format Various home console + Nintendo games +AWA Animations Works Accelerated Movie Animation Works +AWD Microsoft Fax At Work Document Microsoft Fax At Work +AWK AWK script/program awk, GNU Awk, mawk, nawk, + MKS AWK, Awka (compiler) +AWM Animations Works Movie (as .AVI) Animation Works +AWS Data (APL Workspace) STATGRAPHICS (APL*Plus/PC) +Ax Directshow filter file format +AXF ARM Executable Image generated by the + ARM tools +AXF "lightweight geodatabase" [1] ESRI ArcPad +AXM Axmedis object Axmedis Tools +AZD Amazon Software Download Amazon Software Download +AZW DRM enabled eBook All models of Amazon + Kindle +AZW1 DRM enabled eBook with embedded fonts All models Amazon Kindle +AZW2 Program file All models of Amazon + Kindle excluding Kindle 1 +AZZ Data file AZZ Cardfile +ATSOFTS Encrypted File ^[2]LetEncrypt.xyz + +B1 Archive file format B1 Free Archiver +B&W Black and white graphics file atari - mac +B&W Mono binary screen image 1st Reader +B Batch list APPLAUSE +B Grand Theft Auto saved game Any of the 3D Grand Theft Auto + games in either III or IV era. +B_W Black and white graphics file Atari - mac +B1N Both mono and color binary screen image 1st Reader +B30 Printer font (JLaser - Cordata) Corel Ventura Publisher +B3D Blitz3D files Blitz3D +B8 Raw graphics file (one byte per pixel) PicLab + plane two + Scifer Archiver and +BA Binary Archive Compression [External Header + Mode] +BAC Compiled BASIC RT-11 BASIC-11 +BAD Bad file Oracle Corporation - many +BAD Animation file Novalogic +BAD File which covers bad blocks on disk RT-11 + volume (not to be moved) +BAK Backup file +BAL Music score Ballade +BALANCE Balance accounting sheet file Balance +BAP Blaze Audio Wave Information File BlazeAudio MadCap Software +BAR Horizontal bar menu object file dBASE Application Generator +BAR Info Bar for GFX2EXE GFX2EXE + Broker Archive. Compressed file +BAR containing number of other files for IBM WebSphere Message Broker + deployment.^[3] +BAS BASIC language source QuickBASIC - GW-BASIC - + FreeBASIC +BAT Batch file MS-DOS, RT-11 +BB Database backup Papyrus Design Group +BBL Bibliographic reference file TeX/BibTeX +BBM Brush Deluxe Paint +BBP Playlist BassBox +BBQ BitBeamer Transfer Queue file BitBeamer +BBS Bulletin Board System announce or text + info file +BBS Hudson-style messagebase FTN software +BC! Unfinished download Unfinished BitComet download + (a BitTorrent client) +BCD Boot Configuration Data Windows Vista and later, + Registry Editor +BCF Card data Bingo Card Creator +BCH Batch process object file dBASE Application Generator +BCH Datafile Datalex EntryPoint 90 +BCO Outline font description Bitstream Inc. +BCP Borland C++ makefile +BCT Backup dictionary Clarion +BCW Environment settings Borland C++ 4.5 +BDB Bookends database Bookends +BDC Dictionary Lingvo +BDEF Builder Definition Websphere Portlet Factory +BDF Adobe Glyph Bitmap Distribution Format Adobe Software +BDF Binary update file BUPDATE.EXE (c) TNT Techn. +BDF Bitmap Distribution Format font file X11 +BDF Datafile Egret +BDIC Google Chrome Dictionary Google Chrome +BDM Videoclip AVCHD +BDMV Blu-ray Video Data Content file Media players / software that + supports Blu-ray structure +BDR Border Microsoft Publisher +BDT Dictionary Lingvo +BDT Behandlungsdatentransfer, an xDT Healthcare providers in + application Germany +BEAM Executable bytecode file in fat binary BEAM (Erlang virtual machine)^ + format [4] +BEF Bleck Encrypted File +BEM BIM Cost estimating file BIMestiMate +BEZ Outline font description Bitstream +BF Brainfuck sourcefile +BF2 Bradford 2 font +BFC Briefcase Win95 Win95 +BFM Font metrics unix/Frame +BFS Binary File Storage +BFX Fax BitFax +BGA Bitmap graphics +BGI Borland Graphics Interface device driver Turbo C - Turbo Pascal +BH Blackhole data compression format +BI BASIC include file Visual Basic - FreeBASIC +BIB Bibliography (ASCII) +BIB Database - not compatible with TeX Papyrus + format +BIB Literature database TeX/BibTeX +BIF Binary Image Format b&w graphics file Image Capture board +BIK Bink Video file (RAD Video) +BIM Building Information Modeling ArchiCAD / Autodesk Revit +BIN Binary file, usually zero-start (.com + analog) +BIN SGI Powerflip +BIN Text mode memory dump The Draw - TUD - ACiDDraw - + etc. +BIO BioniX Wallpaper playlist file BioniX Wallpaper Changer +BIO OS/2 BIOS +BIT Bitmap X11 +BIT Encrypted file FinalCrypt +BK! Document backup WordPerfect for Win +BK Faxbook JetFax +BK? Backup file +BKC Backup catalog Backup4all +BKF Backup archive Windows NTBackup Utility +BKn Timed backup file for document window n WordPerfect for Win +BKP Backup file Write - TurboVidion + DialogDesigner +BKW Mirror image of font set FontEdit +BLD BLoaDable picture BASIC +BLD SYSGEN Build procedure file RT-11 +BLEND Blender3D Project File Blender +BLG Backup Log ARCSOLO +BLK Temporary file WordPerfect for Win +BLOB Unknown Steam (software) for Win +BLP Blizzard Game Picture Blizzard Entertainment games + (various) +BM BitMap graphics file +BM3 UIQ3 Phone backup +BMD Nintendo proprietary 3D model file Various Nintendo games +BMK Bookmark of old Windows Help file Windows 3.0 - XP +BMP OS/2 or Win graphics format (BitMap QPeg - CorelDraw - PC + Picture) Paintbrush - many +BMPW bitmap world-file - geo-references info +BMS Nintendo proprietary MIDI tracker format Various Nintendo games +BMT Ami Pro Button Ami Pro +BNA Data Atlas Boundary +BNK Adlib instrument bank file +BNR Graphics Banner Banner - Poster +BOB File archive for Lego Island 2 Lego Island 2 +BOD Stores paths to game files in a BOB Lego Island 2 + archive +BOK Shamela Library book Shamela Library Program +BOO Book-format READIBM +BOO Compressed file ASCII archive created by msbooasm.arc + BOO (msbooasm.arc) +BOO Boo programming language source file Boo Programming Language +BOT Bot files, these go with JKB files Quake 3 Engine +BPC Chart Business Plan Toolkit +BPOLY Data Prisms binary 3D object +BPP Backup application Clarion +BPS Used for game patches FLIPS and other patch + implementers +BPS WPS backup file^[5] Microsoft Word, Microsoft + Works +BPS Binary file commonly used in computer Certain antivirus programs and + malware computer malware +BPT Bitmap fills file CorelDRAW +BPW Bitser proprietary encrypted password Bitser password manager + file +BR Script Bridge +BRD EAGLE board file EAGLE +BRD Tanzzle board file Tanzzle +BRD Cadence Allegro board file Cadence +BRF Braille Braille embossers and + refreshable displays +BRK Fax Brooktrout Fax-Mail +BRK The Brake! Mailer REXX script The Brake! +BRL CAD Ballistic Research Laboratory + CAD +BS Boot sector file SYSLINUX +BS2 Archive BS2.EXE +BSA Archive BSArc +BSC Compressed Apple II file archive created BINSCII + by BINSCII +BSC Database Source Browser +BSC Pwbrmake object file Microsoft Fortran +BSP GoldSource/Source engine map files Valve Corporation +BSP id Tech map files id Software +BSS boot sector (DOS) file SYSLINUX +BSS Casio Phone base PC-LINK +BST BiblioTex file (BiblioTex=bibliography TeX + file) +BSY Busy flag FTN soft +BTM Batch-to-memory (quick batch) 4dos -ndos +BTN Makeover Button file +BTX backup of 4DOS batch files (_4INST.BTM) 4DOS +BUFR Binary Universal Form for the + Representation of Meteorological Data +BUG Bugs and Problems +BUN LucasArts Bundle File +BUP Backup file +BUT Button definitions Buttons! +BUY Datafile format movie +BVF BIM model file format BIM Vision +BVn Overflow file below insert point in Doc WordPerfect for Win + n +BWB Spreadsheet application Visual Baler +BWR Beware (buglist) Kermit +BYK BYK Compressed File BYK +BYU BYU Movie BYU +BZ2 Archive bzip2 +BZM Map Blitzkrieg +BZN Map file Star Trek Armada II Fleet + Operations map file + +C-- C-- language source Sphinx C-- + C language source + Watcom C/C++, Borland +C Note that on case-sensitive platforms like C/C++, gcc and other C + Unix and with the gcc compiler the uppercase compilers + .C extension indicates a C++ source file. + +C Unix file archive COMPACT +C++ C++ language source +C00 Print file Ventura Publisher +C01 Typhoon wave files AWAVE +C32 COMBOOT Executable (32-bit) SYSLINUX +C86 C source code file Computer Innovation + C86 +CA Initial cache data for root domain servers Telnet +CA? Borland packed and split file Borland Installer +CAB Cabinet archive Windows 95 and later, + many file archivers +CAC dBASE IV executable when caching on/off (see + cachedb.bat) +CAD Drawing BobCAD-CAM +CAD Document Drafix Windows CAD +CAL Calendar file Windows 3.x +CAL Spreadsheet format SuperCalc +CALS Computer Aided Acquisition and Logistics +CALS Support Raster Format +CAM Casio Camera +CAN Fax Navigator Fax +CAP Caption Ventura Publisher +CAP Capture file ProComm - Telix +CAS C + ASM language source Turbo C +CAT Catalog CP Backup - dBASE IV +CAT Device driver digital signature Microsoft Windows +CAT Stellarium Star Catalogue Stellarium +CATDrawing Drawing file of CATIA V5 CATIA V5 +CATPart Part file of CATIA V5 CATIA V5 +CATProduct Assembly file of CATIA V5 CATIA V5 +CATS Combined source ATS +CBA Source code Creative BASIC +CBC Fuzzy logic system CubiCalc +CBL COBOL source code file +CBM Compiled bitmap graphics XLib +CBR Comic Book Reader (RAR file) CDisplay and similar +CBS MasterWord button bar configuration file +CBT COMBOOT Executable (incompatible with DOS COM SYSLINUX + files) +CBT Computer Based Training many +CBZ Comic Book Reader (ZIP file) CDisplay and similar +CC C++ source code file +CC CC language source CC +CCC Bitmap graphics (native format) Curtain Call +CCD text metadata for CD/DVD images CloneCD Control File +CCF Communications configuration file Symphony +CCF Color Chat file Color Chat File +CCH Chart CorelChart +CCITT CCITT Group 3 and Group 4 Encoding +CCL Communication Command Language file Intalk +CCO BTX Graphics file XBTX +CCT Print Template BobCAD-CAM +CD CD description DN +CDA CD-Audio Win95 +CDB Card database CardScan +CDB Main database TCU Turbo C Utilities +CDF Common Data Format +CDF Company Data File Nominal Small Business + Accounting software +CDF Computable Document Format Mathematica +CDF Cyberspace Description Format +CDF Graphics netcdf +CDK Document Atari Calamus +CDL CADKey CADL Language CADKey +CDM Disk Drivers NPA Novell NetWare +CDM Music format (compressed) +CDO Music notation Cc,rrescendo Music + Notation Editor +CDR Vector graphics format (drawing) CorelDraw! +CDT Corel Draw Template File CorelDraw! + Visual FoxPro, +CDX Compound index file Advantage Database + Server +CE Computer Eyes Conversion Artist +CE Main.ce The FarSide Computer + Calendar +CEB Cont. Edge Bitmap Conversion Artist +CEF CA-Clipper Workbench Application CA Clipper +CEF Export File +CEF Compact Embedded Font Adobe Illustrator + Tempra Show - Edsun +CEG Bitmap graphics Continuous Edge + Graphics +CEL Animation CEL 3D Studio +CEL Graphics Autodesk Animator - + Lumena +CEL Celestia Script Celestia +CELX Celestia Script Celestia +CER Security certificate Microsoft Windows +CF Configuration file imake +CFA Audio file Adobe Premiere Pro +CFC ColdFusion Component Adobe ColdFusion +CFG Configuration file +CFL Chart CorelFLOW +CFM ColdFusion Markup Language Adobe ColdFusion +CFN Font data Atari Calamus +CFO C Form Object internal format object file TCU Turbo C Utilities +CFP Fax The Complete Fax + Portable +CFT CFast graphics file Disney Animation + Studio +CGA CGA display font Ventura Publisher +CGI Common Gateway Interface script +CGM Computer Graphics Metafile vector graphics A&L - HG - many +CH Clipper language header CA Clipper +CH3 Chart Harvard Graphics 3.0 +CH4 Presentation Charisma 4.0 +CHD Font descriptor FontChameleon +CHI ChiWriter Document ChiWriter - Chiview +CHK Recovered data DOS CHKDSK +CHK Temporary file WordPerfect for Win +CHL Configuration History Log +CHM Compiled Help File Microsoft Windows, + Help Explorer Viewer + Krasbit Technologies, +CHML Encrypted Data File Chameleon Imaging + Workflow Software +CHN Data Ethnograph 3 +CHO ChordPro lead sheet (lyrics and chords) ChordPro and similar + tools +CHP Chapter file Ventura Publisher +CHR Character set Turbo C - Turbo Pascal +CHT Chart Harvard Graphics 2.0 - + SoftCraft Presenter +CHT CHeaT in any program/game many +CHT Interface file for ChartMaster dBASE +CHZ Archive CHARC +CIA Nintendo 3DS importable archive Nintendo 3DS +CIF Caltech Intermediate Format graphics file +CIF Chapter information Ventura Publisher +CIF Crystallographic Information File RasMol, Jmol +CiM C Text Mode Image File The Ultimate Draw +CIX Database index TCU Turbo C Utilities +CKB Borland C++ 4.x editor keystroke mapping BCW.EXE +CL OpenCL kernel code +CL COMMON LISP source code file +CLA Source Clarion +CLASS Java class file Java +CLD Clipper debugger configuration file CA Clipper +CLJ Clojure source code Clojure +CLP Clip art graphics file Quattro Pro +CLP Clipboard file Windows 3.x +CLP Compiler response file CA Clipper +CLP Graphics format PCPAINT/Pictor + Media hardware / +CLPI ClipAV Clip Information file for Blu-ray software with Blu-ray + structure support +CLPRJ ClassicLadder project file ClassicLadder +CLR Color binary screen image 1st Reader +CLR Color definitions Photostyler +CLR Color scheme Boxer/2 +CLR Palette file for GIS format +CLS C++ class definition file +CLW MFC Class Wizard information Microsoft VC++ +CM Data file CraftMan +CMB Xtree for Windows Button Bar file +CMD Command dBASE - Waffle + Microsoft Windows NT +CMD Command Prompt batch file based operating + systems +CMD executable programs CP/M-86 operating + system +CMD External command menu 1st Reader +CMD OS/2 batch/REXX file OS/2 +CMF FM-music file (Creative Music File) +CMK Card Card Shop Plus +CMM CMM script (batch) file CEnvi +CMOD Celestia Model Celestia +CMP Bitmap graphics (Lead CMP compression) +CMP Compressed data PKWare Inc. data + compression library +CMP Header file for PostScript printer files CorelDRAW +CMP Photofinish Calibration Map Photofinish +CMP User dictionary Microsoft Word for DOS +CMR Coach 7 project file Coach 7 +CMRL Concise message routing language DOTGO +CMS Content Management System Any Web Browser +CMU Carnegie Mellon University Formats +CMV Animation (CorelMove CorelDraw 4.0) CorelMove CorelDraw + 4.0 +CNC CNC general program data +CND System generation conditional file RT-11 +CNF Configuration (program - printer setup) program - printer + setup +CNF Configuration file +CNT contents table of old Windows Help file Windows 3.0 - XP +CNV Temporary file WordPerfect for Win +CNV Winword DLL used as part of an import Microsoft Word + operation (CNV=converter) +CO Cobalt - parametric drafting and 3D modeling Ashlar-Vellum +COB Calgari trueSpace2 File Format +COB COBOL source code file +COD Code definition table UUPC + Forecast Plus - +COD Datafile Microsoft Multiplan - + StatPac Gold +COD file including CODES for any program/game many +COD Printer code definition file Boxer/2 +COD Program compiled code FORTRAN +COD Template source file dBASE Application + Generator +COD Videotext file +COE Coefficient file Xilinx ISE +COF Animation Control File Diablo II +COFFEE CoffeeScript source code file +COL Color palette Autodesk Animator - + many +COL Spreadsheet Microsoft Multiplan +COL DIMACS graph data stores a single undirected + graph (text and binary variants) +COM Command (memory image of executable program) DOS +COM Indirect command file (sequence of commands RT-11 + to be executed) +CON Configuration file Simdir +CON MSTS Consist file MSTS +CONTACT Contact file Windows +CPC Compressed image Cartesian Perceptual + Compression +CPD Script Complaints Desk +CPF Fax The Complete Fax +CPI ColorLab Processed Image bitmapped graphics + file +CPI MS-DOS codepage file MODE.EXE +CPI Video clip information file The AVCHD format +CPL Control panel file Windows 3.x +CPL copley file COPLEY.EXE (Copley + Scientific Ltd) +CPL Presentation Compel +CPMZ ConPro/Miradi Zipfile Miradi and ConPro +CPP C++ language source Watcom C/C++ +CPP Presentation CA-Cricket Presents +CPR Knowledge Access GCGW +CPR Cubase Project File Steinberg Cubase +CPS backup of startup files by QEMM (?) + autoexec.cps +CPT Encrypted memo file dBASE +CPT Mac file archive COMPACT PRO +CPT Template CA-Cricket Presents +CPZ Music text file COMPOZ +CR2 Raw image format Canon digital cameras +CRA Advanced crack file (usually text) +CRD Cardfile Windows 3.x - YourWay +CRD Map Holux - Alan +CRD Molecular coordinates CHARMM, RasMol +CRDOWNLOAD Google Chrome download in progress Google Chrome + Microsoft MASM - +CRF Cross-reference Zortech C++, RT-11 + CREF +CRK Crack file (usually text) +CRP Encrypted database dBASE IV +CRS File Conversion Resource WordPerfect 5.1 +CRT Security certificate Microsoft Windows +CRT Terminal settings information Oracle +CRU Compressed file archive created by CRUSH +CRW CrossWords document file +CRX Google Chrome Extension Google Chrome +CS C# source file C# +CSD Compact Shared Document Dream To Reality +CSG Batch file (Submit) ISIS/w +CSG Graph Statistica/w +CSHTML Razor page/view +CSM Borland C++ 4.x precompiled header file BCW.EXE +CSO ACDSee edit tool ACDSee +CSP PC Emcee Screen Image file Computer Support + Corporation +CSS Datafile CSS - Stats+ +CSS Datasheet Statistica/w +CSS cascading style sheet +CSV Adjusted EGA/VGA palette CompuShow +CSV Comma Separated Values text file format + (ASCII) +CTC Control file PC Installer +CTF Character code translation file Symphony +CTK CommonTime Key file CommonTime software + applications +CTL Control file dBASE IV - Aldus Setup +CTL BATCH control file (generated by BATCH from RT-11 + .BAT file) +CTT BATCH Temporary file RT-11 +CTX Ciphertext file Pretty Good Privacy + RSA System +CTX Course TeXt file some Microsoft online + guides +CTX document Creativyst Table + eXchange +CUE Cue sheet +CUF C Utilities Form definition TCU Turbo C Utilities + Resource Workshop - +CUR Windows resource (cursor image file) WRT - Watcom Resource + Editor +CUT Graphics format (bitmapped graphics) dr. Halo +CV4 Color file CodeView +CVP Cover page WinFax +CVS Graphics Canvas +CVT Backup file for CONVERTed database file dBASE IV +CVW Color file CodeView +CW Circuit Wizard Document Circuit Wizard +CWEB C Web +CWK Datafile ClarisWorks, + Appleworks +CXX C++ source code file Zortech C++ +CYS Cytoscape session file Cytoscape + +D D Programming Language source file DMD +D Directory containing configuration files Unix + (informal standard) +D3V Video file Nintendo DS (with ARME, + MMCF etc.) +D4D Data Draw 4D object +D4P Data Draw 4D Pro object +D64 Commodore 64 disk image +D88 Toshiba Pasopeia D88 disk image format A series of emulators of + Japanese computers +DAA Direct Access Archive +DAE COLLADA file +DAF Data file Digital Anchor +DAT AMPL data file AMPL +DAT Maxum chromatograph chromatogram Siemens Maxum + Chromatograph +DAT LDraw (Sub)Part File, 3D Model LDraw +DAT Document Microsoft Word Format + (old) +DAT data RSNetWorx Project +DAT Data file in special format or ASCII +DAT Database file Clarion (programming + language) + Norton Utilities disc image data. It saves +DAT Boot sector, part of FAT and root directory Norton Utilities + in image.DAT on same drive. +DAT Optical disc image (can be ISO9660, but not cdrdao, burnatonce + restricted to) +DAT Video CD MPEG stream + Windows registry hive (REG.DAT Windows +DAT 3.11; USER.DAT and SYSTEM.DAT Windows 95, Microsoft Windows + 98, and ME; NTUSER.DAT Windows NT/2000/XP/ + 7) +DAT Minecraft game data Minecraft +DATS Dynamic source ATS + Recorded encrypted video +DAV Proprietary DVR format from digital video + recorders DVR365 or + AlienDVR series^[6] +DB$ Temperature debug info Clarion Modula-2 +DB$ Temporary file dBASE + Paradox - XTreeGold - +DB Database file dbvista - Oracle - + XoftSpySE - Windows + thumbnail cache^[7]^[8] +DB Configuration dBASE IV - dBFast +DB Multi Edit config ME +DB2 Database dBASE II +DB3 Database dBASE III +DBA Database file Turbo Prolog - DataEase +DBA DarkBasic source code +DBC DataBaseContainer Visual FoxPro +DBD Business data Business Insight +DBD Debug info Clarion Modula-2 + dBASE III/IV - Visual + FoxPro - dBFast - DataBoss + - DBVista - CA-Clipper - +DBF Database file Visual Objects - Alaska + Xbase++ - + + Advantage Database Server + +DBFX DevBox Database File Pudince Devbox +DBG Debugger script DOS debug - Watcom + debugger +DBG Symbolic debugging information Microsoft C/C++ +DBK Database backup dBASE IV +DBL DIBOL source file +DBL Design Block file EAGLE +DBM Datafile DataEase +DBM Menu template DataBoss +DBO Compiled program dBASE IV +DBPro DarkBasicPro Project +DBS Data file used by Managing Your Money +DBS Database in SQL Windows format +DBS Datafile PRODAS +DBS Printer description file Microsoft Word, Microsoft + Works +DBT FoxBASE+ style memo FoxPro 2.x +DBT Memo file for database w/same name dBASE IV - dBFast +DBW Windows file DataBoss +DBX DataBeam GCGW +DBX AutoCAD Database AutoCAD +DBX Archive File Outlook Express +DC CAD drawing file DesignCAD 3000 for Windows +DC6 Image file Diablo II +DCA Document Content Architecture text file IBM DisplayWrite +DCC Animation Diablo II +DCD CAD Drawing File DesignCAD 3DMax for + Windows +DCF floppy disk image Disk Copy Fast +DCH Schematic Drawing file DipTrace Schematic Capture +DCI Dreamcast Save File Dreamcast +DCL Delphi Control Library Borland Delphi +DCM DCM music module AWAVE +DCP OS/2 device code page OS/2 +DCS Bitmap graphics (CYMK format) QuarkXPress +DCS Datafile ACT! Activity Files +DCT Dictionary: used by many programs with Clarion + program dependent format +DCT Spell checking dictionary Harvard Graphics 3.0 - + Symphony +DCT DataBaseContainer Extension Visual FoxPro +DCU Delphi unit (compiled) Borland Delphi +DCW Walter Machine Programing Walter Profile Editor +DCX Multi-page PCX graphics (common fax format) Intel - SpectraFAX +DCX DataBaseContainer Index Visual FoxPro +DD Macintosh file archive DISKDOUBLER +DDA Data GLBasic ASCII 3D object +DDB Bitmap graphics +DDB Digidesign Database File Digidesign Pro Tools +DDD Building Diagram Diagramming software +DDI Disk image DiskDupe +DDP Device Driver Profile file OS/2 + Microsoft Flight +DDS DirectDraw Surface file Simulator, other Microsoft + programs +DEB Unix archive file (software package format) Unix +DEB DEBUG script DOS Debug +DEF Assembly header file Geoworks +DEF Defaults - definitions +DEF Linker definition file TLink - WLink... +DEM Demonstration +DEM Digital Elevation Model +DEM Graphics file VistaPro +DEM Vista DEM file Meta.exe VP3 +DER Security certificate Microsoft Windows +DES Ascii text parameter description AWAVE + Windows Explorer Desktop Control (commonly + "Desktop (create shortcut).DESKLINK", 0 +DESKLINK bytes). Uses a 'special' hidden file + extension (NeverShowExt flag inside the + Registry), overriding the Windows Explorer + option of showing/hiding file extensions. +desktop Desktop Entry freedesktop.org +DEV Device driver +DEV SYSGEN handler build procedure RT-11 +DEV Dev-C++ project file Dev-C++ +DEX Dalvik executable Android +DFD Data Flow Diagram graphic file Prosa +DFF RenderWare model data (e.g. Grand Theft + Auto III and later) +DFI Outline font description Digifont +DFL Default program settings Signature +DFM Data Flow Diagram model file Prosa +DFM Delphi form module Borland Delphi +DFS Delight Sound File +DFTI Dynamic Formatted Text and Images (Word FlexiWrite + Processing) +DFV Printing form (Word) Microsoft Word +DFX Micrografx Effects DLL +DGN Graphics file MicroStation +DGS Diagnostics +DH Dependency information for .ph Geoworks +DHP Dr. Halo PIC Format graphics file Dr. Halo II - III +DHT Datafile Gauss +DI D Programming Language interface file DMD +DIA Diagraph graphics file Computer Support + Corporation +DIB Device Independent Bitmap rarely used Windows 3.0 + bitmap; Win - OS/2 +DIC Dictionary (e.g. from WinWord) +DICOM Digital Imaging and Communications in DICOM Software (XnView) + Medicine (DICOM) bitmap +DIF Borland patch data file Borland patch +DIF Data Interchange Format Visicalc +DIF OS/2 V2.2 Display Information File OS/2 +DIF Output from Diff command - script for Patch + command +DIF SRCCOM, BINCOM output file RT-11 +DIG Digilink AWAVE +DIG Sound Designer 1 audio file AWAVE +DIP Graphics +DIP Watcom debug info processor WatcomDebugger +DIP PCB Drawing file DipTrace PCB Layout +DIR Dialing directory file Procomm Plus +DIR Directory file VAX - CPS Backup +DIR Movie MacroMind Director 4.x +DIR Directory listing file RT-11 +DIRED Directory listing (ls format) Dired +DIS Distribution file VAX Mail +DIS Thesaurus CorelDraw +DIZ Description file (Description In Zip) + DJVU Document Format, a format similar to +DJVU PDF but with higher compression rates at DJVU + the same quality. +DKB Raytraced graphics DKBTrace +DL Animation format (Italian origin) Display - DL Viewer +DLC JDownloader Link Container JDownloader +DLD Lotus 1-2-3 + Produced by Exstream +DLF Dialogue Live Format Dialogue and edited by + Dialogue Live Editor +DLG Dialog resource script file Microsoft Windows SDK +DLG Dialog resources DN +DLG Windows SDK dialog editor data file +DLG Windows SDK dialog editor data file +DLL Dynamic-link library Windows 3.x - OS/2 +DLL Export/import filter CorelDRAW +DLM Microsoft File Transfer Manager Microsoft File Transfer + Manager +DLP Data DAQLab +DLS Setup Norton Disklock +DMF Music format (Delusion Digital Music File) Delusion +DMF DeleD files +DMG Apple Disk Image Mac OS X (Disk Utility), +DMO Demo Derive +DMP Dump file (e.g. screen or memory) +DMP DUMP utility output file RT-11 +DMS Amiga file archive DISKMASHER +DN 3D file Adobe Dimension + At least 30 camera models + Digital Negative (DNG), a publicly from at least 10 +DNG available archival format for the raw files manufacturers, and at + generated by digital cameras least 200 software + products +DNT data RSNetWorx Project +DO Java servlet file Web browser (Various) + A Document, or an ASCII text file with text +DOC formatting codes in with the text; used by Microsoft Word and others + many word processors +DOCM Microsoft Word 2007 Master document Microsoft Word 2007 +DOCX Office Open XML Text document Microsoft Word +DOF Delphi project options file Borland Delphi +DOG Screen file Laughing Dog Screen Maker +DOH Dependency information for .poh Geoworks +DOR Roland Digital audio file Roland +DOS External command file 1st Reader +DOS Network driver (e.g. pkt_dis.dos) +DOS OS/2 V3 SVGA PMI-File Svga.exe + renamed system files (AUTOEXEC.BAT, +DOS COMMAND.COM, CONFIG.SYS,DBLSPACE.BIN, Windows 95, 98, ME + DRVSPACE.BIN, IO.SYS, MSDOS.SYS) of (dual-boot feature) + previous MS-DOS version +DOS Text file containing DOS specific info +DOT Line-type definition file CorelDRAW +DOT Microsoft Word document template Microsoft Word +DOTX Office Open XML Text document template Microsoft Word +DOX Text file MultiMate 4.0 +DOZ Description Out of Zip VENDINFO +DP Calendar file Daily Planner +DP Data file DataPhile +DPR Default project- and state-related Borland C++ - Delphi - C + information +DPF Bareboard PCB CAD/CAM format Ucamco +DPF Debrief Plot File Debrief +DPX Digital Moving Picture Exchange +DRP Web3D File Web3D +DRS Data Resource File Age of Empires (video + game) +DRS Display Resource WordPerfect for Win +DRU Design Rules EAGLE +DRV Driver +DRW Designer vector graphics file Designer - MicroGraphix +DS TWAIN Data Source Any twain-source must + supply one xxx.ds file +DS1 Map file Diablo II +DS4 Vector graphics Micrografx Designer 4.x +DSC Celestia Deep Space Catalog file Celestia +DSC Description file +DSC Discard file Oracle +DSD Database DataShaper +DSF Data Storage Format Golden Helix +DSF Delusion Digital Sound File Delusion +DSK Desktop configuration BP - DN - BC++ - TP +DSK Disk Drivers Novell NetWare +DSK Logical disk file RT-11 +DSM Digital Sound Module DSI +DSN Design Object System Designer +DSP Display parameters Signature +DSP Dynamic Studio Professional Module Dynamic Studio +DSP Graphics display driver Dr. Halo +DSP Norton viewer DLL Win +DSP Visual Studio 6 project file Microsoft Visual Studio +DSR Driver Resource WordPerfect for Win +DSS Screensaver file DCC +DSS Digital Speech Standard (Sound) Digital Soup +DSS SQL Script for .Time Framework Exaktime +DST Tajima Embroidery Format Embroidermodder +DST WAIN (Scanner spec) data source DLL Win +DSV Nintendo DS battery save DeSmuME, DraStic +DSW Borland C++ 4.x desktop layout file BCW.EXE +DSY DAISY container file ADAKTA.EXE +DT1 Tile file Diablo II +DT2 msn-emoticon paint +DT_ Data fork of a Macintosh file Mac-ette +DTA Data file Turbo Pascal - PC-File - + Stata +DTB Database Backup for .Time Framework Exaktime +DTD Document Type Definition +DTF Database file PFS - Q&A +DTL Django template language djangoproject +DTM DigiTrekker music module AWAVE +DTO data Directory Toolkit output + Timeworks / greenstreet +DTP Desk Top Publishing Document Publisher3/ Greenstreet + Publisher 4.5 +DTP Page Magic 2.0 publication Page Magic 2.0 upgrades to + Greenstreet Publisher +DTP Publication Publish-It! upgrades to + Greenstreet Publisher +DTS Torque Game Engine model format +DTS Device tree source file Linux kernel project +DTSI Device tree include file Linux kernel project +DVC Data Lotus 1-2-3 +DVDPROJ iDVD project file iDVD (Apple iLife '08) +DVI DeVice Independent document TeX +DVP DESQView run-file DESQView +DVP Device parameter file AutoCAD +DW2 Drawing DesignCAD for DOS, & + DesignCAD for Windows +DWB Coryphaeus Software Designers Workbench CSD +DWC Archive DWC +DWD DiamondWare Digitized file AWAVE +DWF Autodesk Design Web Format Design Review + AutoCAD, IntelliCAD, +DWG Drawing PowerCAD, Drafix, + DraftSight etc. +DWZ DVD MovieFactory for TOSHIBA Project File, Designer - MicroGraphix or + Designer vector graphics file TOSHIBA +DX Text file DEC WPS/DX format - DEC + WPS Plus +DXF Dialogue Exchange Format Exstream Dialogue +DXF Drawing Interchange File Format vector AutoCAD, IntelliCAD, + graphics PowerCAD, etc. +DXN Fax Fujitsu dexNET +DXP SpotFire data TIBCO Spotfire +DXP ISO creation project file CD Burner XP Pro +DYLIB Dynamic Library Mac OS-X +DYN Data Lotus 1-2-3 + +E E language source code E +E## EnCase Evidence File chunk EnCase Forensic Analysis Suite + entity +E00 ArcInfo interchange file GIS software +E2D 2-dimensional vector graphics file Editor included in JFire +EAS Extended file attributes OS/2 +EAR Enterprise archive archive +EBA Source code Emergence BASIC + versions of DOS system files ( +EBD AUTOEXEC.BAT, COMMAND.COM, CONFIG.SYS, Windows 98, ME + WINBOOT.SYS, etc. ) for an emergency + boot disk +EBJ Error-checking object file Geoworks +EBQ CITE standard electronic BQ exchange + file +EC Error checking preprosessed Goc source Geoworks + code +EC Source code eC +ECC Error-checking file dvdisaster +ECE Escenic Contenting Engine dynamic page Escenic +ECMS Status document ECMerge +ECMT Template document / Session ECMerge +ED5 EDMICS GCGW +EDA Ensoniq ASR disk image AWAVE +EDE Ensoniq EPS disk image AWAVE +EDF European data format Medical timeseries storage + files +EDF Exchequer Document Format IRIS Software +EDK Ensoniq KT disk image AWAVE +EDL EDL Premiere +EDQ Ensoniq sq1,2/ks32 disk image AWAVE +EDS Ensoniq SQ80 disk image AWAVE +EDT Default settings VAX Edt editor +EDT Ensoniq TS disk image AWAVE +EDT External editors definitions DN +EDV Ensoniq VFX-SD disk image AWAVE +EEB Button bar for Equation Editor WordPerfect for Win +EFA Ensoniq ASR file AWAVE +EFA Encrypted File Archive +EFE Ensoniq EPS file AWAVE +EFE Ensoniq EPS instrument file AWAVE +EFK Ensoniq KT file AWAVE +EFQ Ensoniq SQ1/SQ2/KS32 file AWAVE +EFS Ensoniq SQ80 file AWAVE +EFT Ensoniq TS file AWAVE +EFT High resolution screen font ChiWriter +EFV Ensoniq VFX-SD file AWAVE +EFX Fax Everex EFax +EGA EGA display font Ventura Publisher +EIS EIS Spectrum Analyser Project EIS Spectrum Analyser +EKA Internal data files Borland's Eureka +EL Emacs Lisp source code file Emacs +ELB Synergy/DE library +ELC Byte-compiled Emacs Lisp code Emacs +ELFO ElsterFormular +ELI Archive ELI +ELT Event list text file Prosa +EMAIL Outlook Express Email Message Windows Live Mail, Outlook + Express, Microsoft Notepad +EMAKER E language source code (maker) E +EMC Striata Reader Encrypted Document Format +EMD ABT Extended MoDule AWAVE +EMF Microsoft Enhanced Metafile +EML Stationery Template Outlook Express +EMU Terminal emulation data BITCOM +EMZ Microsoft Enhanced Metafile compressed Microsoft Office suite + with ZIP +ENC Encoded file - UUENCODEd file Lotus 1-2-3 - uuexe515.exe +ENC Music Encore +END Arrow-head definition file CorelDRAW +ENFF Extended Neutral File Format +ENG Dictionary engine Sprint +ENG English documentation +ENG Graphics file (charting) EnerGraphics +ENV Envelope or Environments +ENV Enveloper macro WOPR +ENV Environment file WordPerfect for Win +EOSSA Electro-Optic Space Situational + Awareness file format +EOT Embedded OpenType +EP GUI wireframe/prototype project Prikhi Pencil, Evolus Pencil +EPA Award BIOS splash screen Award BIOS, XnView +EPD Publication Express Publisher +EPI Document Express Publisher +EPI Encapsulated PostScript graphic file + Encapsulated PostScript (Graphics CorelDraw - PhotoStyler - +EPS format) PMView - Adobe Illustrator - + Ventua Publisher + Electronic Publication - (e-Reader Okular (Linux) - Apple iBooks - +EPUB format) Sony Reader - Adobe Digital + Editions - Calibre (LMW) +EQN Equation filE WordPerfect for Win +ERD Entity Relationship Diagram graphic file Prosa +ERL Erlang source code file +ERM Entity Relationship Diagram model file Prosa +ERR Compiler/linker error report +ESCPCB Data file of "esCAD pcb", PCB Pattern esCAD pcb provided by + Layout Design Software Electro-System +ESCSCH Data file of "esCAD sch", Drawing esCAD sch provided by + Schematics Diagram Software Electro-System +ESH Extended Shell batch file +ETH Document Ethnograph 3 +ETF Encrypted Text File. Used in some + security programs. +ETL event trace log file Microsoft^[9]^[10] +ETW Proprietary format from EnterTech for Enter-Tech + the MagicSing/Mic Karaoke product line. +ETX Structure-enhanced text for some ascii + text browsers +EUI Ensoniq EPS family CD image AWAVE +EVT Events descriptions +EVT Windows Event log file Microsoft Windows NT 4.0 - XP; + Microsoft Event Viewer +EVTX Windows Event log file XML structured Microsoft Windows Vista, 7, 8; + Microsoft Event Viewer +EVY Document WordPerfect Envoy +EWD Document Express Publisher for Windows + Elixir programming language +EX Elixir source code file running on BEAM (Erlang virtual + machine)^[11] +EX3 Device driveR Harvard Graphics 3.0 +EXB Audio File E-MU Systems Emulator X Sampler + File +EXC Exclude file for Optimize (do not QEMM + process) (QEMM) +EXC REXX source code file VM/CMS +EXE Directly executable program DOS, OpenVMS, Microsoft Windows + , Symbian or OS/2 +EXF Exactal Exchange File CostX +EXF Excute file OnHand PC +EXM MSDOS executable, system-manager HP calculator + compliant (HP calculator) +EXP Drawing File format Drawing Express +EXP Melco Embroidery Format Embroidermodder +EXP Protected mode EXE by PharLap Software PharLap +EXP Exports Library File VisualStudio +EXS Audio File Apple Logic Pro EXS instrument +EXS Elixir script file Interactive Elixir (IEx) shell^ + [12] +EXT Extensions descriptions file +EXX Intermediate file by MsgPut IBM LinkWay +EZW easyOFFER document file^[13] easyOFFER by Reagency Systems + Corp. +EZF Fax Calculus EZ-Fax + +F Archive FREEZE +F Forth language source code file Forth development + systems +F Fortran language source code file (in Many Fortran compilers + fixed form) +F01 Fax perfectfax +F03 Fortran language source code file (in Many Fortran compilers + free form) +F2R Farandole Linear Module Farandole +F3R Farandole Blocked Linear Module Farandole +F4 Fortran IV source code file +F4A Flash Video F4V with only audio (see also Adobe Flash + SWF) +F4B Flash Video F4V audiobook (see also SWF) Adobe Flash +F4P Flash Video F4V with digital rights Adobe Flash + management (see also SWF) + A container format for Flash Video that +F4V differs from the older FLV file format Adobe Flash + (see also SWF) +F77 Fortran language source code file (in Many Fortran compilers + fixed form) +F90 Fortran language source code file (in Many Fortran compilers + free form) +F95 Fortran language source code file (in Many Fortran compilers + free form) +F96 Fax Frecom FAX96 +FA FASTA format sequence file +FAC see FACE +FACE Usenix FACE graphics file +FAM Famtasia Famicom image format Famtasia +FAQ Frequently Asked Questions text file +FAR Music format (Farandole Composer Module) Farandole +FAS Macsyma compiled program +FASTA FASTA format sequence file +FAX Fax (raster graphics in CCITT format) most Fax programs +FB Backup files Fifth Generation + Systems FastBack Plus +FB2 FictionBook e-book 2.0 file (DRM-free XML e-book readers + format) +FB2K foobar2000 File foobar2000 +FB2K-COMPONENT foobar2000 Component foobar2000 +FBM Fuzzy Bitmap +FBW HP Backup and Recovery Manager HP Backup + 3D model geometry, material textures, +FBX lighting, armature, and animation Autodesk + sequences for inter application use/ + transport +FC Spell checking dictionary Harvard Graphics 2.0 +FCM Binary file patch file (forward jlpak10.zip + compression) +FCS Flow cytometry standard file +FCP Final Cut Pro project file Final Cut Pro +FD Declaration file Microsoft Fortran +FD Field offsets for compiler DataFlex +FD Front Door' resource files FD +FDB Font Definition Block Ming library +FDS fwNES Famicom Disk System image fwNES +FDS Headerless Famicom Disk System image +FDW Form F3 Design and Mapping +FDX Screenplay Final Draft +FE Data Surface Evolver 3D + surface +FEB Button bar for Figure Editor WordPerfect for Win +FEI Fatal Error Infotable Geoworks + Chess applications +FEN Forsyth–Edwards Notation -text data describes a + specific position. +FES File produced when a fileless occurrence 3D Topicscape + in 3D Topicscape is exported to Windows +FF Intelligont FIAS format +FF Outline font description Agfa Compugraphics +FFE Front Fareast Famicom image format +FFF Fax defFax +FFI Atech FastFont (AllType) +FFIVW File Format for the Interchange of + Virtual Worlds +FFT Dca/FFT Final Form Text text file + (DisplayWrite) +FFT DCA/FFT Final Form Text text file DisplayWrite +FH3 Vector graphics Aldus FreeHand 3.x +FH4 Vector graphics Aldus FreeHand 3.x +FI Interface file Microsoft Fortran +FIF Fractal Image Format file +FIG Figure File MATLAB +FIL Table Data Audit Command Language + (ACL) +FIL File template Application Generator +FIL Filelist +FIL Files list object file dBASE Application + Generator + Mirror. FIL is the name given to the +FIL saved FAT by the mirror program included MS-DOS - + in some versions of DOS and in PCTools +FIL Overlay WordPerfect +FIL File which was moved to the Virus Vault + by AVG +FILE A generic Windows file +FILM Filmkey film file Filmkey Player +FIN Print-formatted text file Perfect Writer - + Scribble - MINCE +FIO Aldus PhotoStyler graphics filter +FIO Image PALS viewer DLL +FIT File Index Table WindowsNT +FIT see FITS +FIT Fityk Script Fityk +FITS Flexible Image Transport System astronomy software +FIX Patch file +FKY Macro file FoxPro +FLA Source material for Flash applications Adobe Flash + (see SWF) +FLAC Audio codec, Audio file format +FLAME Fractal configuration file Apophysis +FLB Format library Papyrus +FLC Animation format FLIC >320x200 AAPlay - Autodesk + AniPro +FLD Folder Charisma +FLI Animation format FLIC 320x200 Autodesk Animator +FLI TeX font library EmTeX +FLM Film Roll AutoCAD/AutoShade +FLP Flstudio project file Fruity Loops + (FlStudio) +FLP FLP Designer layout file FLP Designer +FLT Data/file conversion filter (or overlay) Alsud, Microsoft Word +FLT Filter file Micrografx Picture + Publisher +FLT MultiGen Flight +FLT Support file - graphics filter Asymetrix ToolBook +FLX Animation format +FLX Compiled binary DataFlex +FLV A container format for Flash Video (see Adobe Flash + also SWF) +FM Database FileMaker Pro +FM1 Spreadsheet format overlay Lotus 1-2-3 release + 2.x +FM3 Device driver Harvard Graphics 3.0 +FM3 Spreadsheet Lotus 1-2-3 release + 3.x +FMB File Manager Button bar WordPerfect for Win +FMF Font or icon file IBM LinkWay +FMK Makefile Fortran PowerStation +FMO Compiled format file dBASE IV +FMT Format file dBASE IV - FoxPro - + Clipper 5 - dBFast +FMT Gate3 format file +FMT Style sheet Sprint +FMV Full Motion Video file +FN3 Font file Harvard Graphics 3.0 +FND Files searching properties Win95 +FNI FileNet Native Document FileNet +FNK FunkTracker music module AWAVE, FunkTracker +FNM Fannie Mae Residential Loan Data (RLD) Desktop Originator + format for mortgage submission to DO/DU +Fnn DOS screen text font - height nn pixels fntcol13.zip +FNT Font file many +FNX Inactive font Exact +FO1 Font file Borland Turbo C +FO2 Font file Borland Turbo C +FOG Fontographer Database File Fontographer 3.5 +FOL Folder of saved messages 1st Reader +FON Log of all calls Procomm Plus +FON Terminate phonebook Terminate - Terminator + - Telix +FON Windows bitmapped font file Win +FONT Font data unix +FOP Freedom of the Press graphic file +FOR Form WindowBase +FOR Fortran language source file many +FOT Installed Truetype font Windows Font Installer +FOX Foxbase executable (precompiled .prg) FoxBase +FP Final Page file FoxPro for DOS +FP Tiff file TIFF/IT P1 +FP Video file DVICO/TVIX MPEG1 video + file +FP3 Database FileMaker Pro +FP4 Database FileMaker Pro +FP5 Database FileMaker Pro +FP7 Database FileMaker Pro +FPC Catalog FoxPro +FPD TMT Pascal compiled unit TMT Pascal +FPL Playlist +FPM Configuration file FoxPro for MacIntosh +FPT Foxpro memo field tables FoxPro +FPU Configuration file FoxPro for Unix +FPW Floorplan drawing FloorPLAN plus for + Windows +FPW Configuration file Visual FoxPro +FPX FlashPix Bitmap Image File FlashPix +FR? Packed mail FTN software +FR3 Renamed dBASE III+ form file dBASE IV +FRF FontMonger Database file FontMonger +FRG Uncompiled report file dBASE IV +FRL GP-Forth library GP-Forth +FRM Registration or other form +FRM Report file dBASE IV - Clipper 5 - + dBFast +FRM Visual Basic Form Visual Basic +FRM MySQL Database Metadata MySQL +FRO Compiled report file dBASE IV +FRP Form PerForm PRO Plus - + FormFlow +FRS Screen Font Resource WordPerfect for Win +FRT Additional (FPT) report description file FoxPro +FRT GP-Forth source file GP-Forth +FRX Main (DBF) report description file Visual FoxPro +FRX Visual Basic binary program file Visual Basic +FSA Applied Biosystems Genetic Analysis data GeneScan + file +FSIM Simulation File Format Loudsoft +FSL Form Paradox for Windows +FSM Farandole Composer WaveSample Farandole +FSPROJ Habanero Firestarter project Habanero Firestarter +FST Linkable program dBFast +FST Temporal database file GTKWave data file +FSTICK Temporal database file Flash Joystick +FSX Data Lotus 1-2-3 +FTB Compressed Ftb file Family Tree Builder +FTH foobar2000 Theme File foobar2000 +FTM Font file Micrografx +FTS Full text search index of old Windows Windows 3.0 - XP + Help file +FTXT text Cloanto text document +FTP Configuration FTP Software PC/TCP +FUK Map File Postal 2 +FW Database FrameWork +FW2 Database Framework II +FW3 Database Framework III +FWEB Fortran WEB +FX On-line guide FastLynx +FXD Phonebook FAXit +FXP Foxpro executable (precompiled .prg) Visual FoxPro +FXS FAX Transmit Format graphics file WinFax +FYF FileLoc FyTek, Inc. + +G Data chart APPLAUSE +G16 GoldED for DOS compiled config GOLDED.EXE +G3 Group 3 Fax Netpbm, ImageMagick, + XnView +G3D Glest model file G3D viewer +G3P data Grand Prix 3 car + physics +G8 Raw graphics file (one byte per pixel) PicLab - Cubicomb + plane three Picturemaker +GAF Globa Game Engine audio format Globa Game Engine +GAM Fax GammaFax +GAME Chess Game macOS Chess +GAMEPROJ Gamesalad game project format GameSalad +gaupol-extension Gaupol +GB Game Boy ROM Nintendo +GB GenBank flat file +GB1 Game Maker backup file (can also be GB2, + GB3, etc.) +GBA Game Boy Advance ROM Nintendo +GBC Game Boy Color ROM Nintendo +GBK GenBank flat file +GBL Genesis Bitmap Layout Genesis Bitmap +GBL Global definitions VAXTPU editor +GBL Global module in Basic programs Basic +GBP Genesis Bitmap Pattern Genesis Bitmap +GBS GBS meta data Generic Build Support + (GBS) +GBR Gerber format PCB CAD/CAM +GBR GIMP brush + Star Wars: +GC Savegame Battlefront II + Galactic Conquest + save file +GC1 Lisp source code Golden Common Lisp + 1.1 +GC3 Lisp source code Golden Common Lisp + 1.3 +GCA IBM GOCA GCGW +GCD Graphics ROBLOX +GCD General content descriptor Wireless devices +GCD Generic Cadd drawing Generic Cadd, Visual + Cadd +GCF Game cache file Steam content + delivery system +GCH GNU preprocessed C++ header file GNU C++ compiler +GCI Nintendo GameCube save file Nintendo GameCube +GCW Microsoft Mathematics Worksheet Microsoft Mathematics +GCX Graph file Mac OS X Grapher +GD3 Game Doctor Super NES ROM image + General Data Format for Biomedical Biomedical signal +GDF Signals processing, Brain + Computer Interfaces +GDF Dictionary file GEOS +GDF Geographical Data Format Various mapping + software +GDF IBM Graphics Data Format Legacy IBM systems +GDL Data ArchiCAD model +GDS McDonnell-Douglas Things +GDT Gerätedatentransfer, an xDT application Healthcare providers + in Germany +GE GEcho config file GEcho +GED GEDCOM Genealogy data + exchange +GED Native format for all A&L products since Arts & Letters + 1983 +GED GoldED for DOS compiled config file GOLDED.EXE +GED Graphics editor file EnerGraphics +GED Game Editor Data / project file Game Editor +GEM Vector graphics file GEM - Ventura + Publisher +GEN Compiled template dBASE Application + Generator +GEN Generated text Ventura Publisher +GENBANK GenBank flat file +GEO Geode Geoworks +GEO GEOS specific file (application) GEOS +GEO GoldED for OS/2 compiled config file GED2.EXE +GEX GEcho config file GEcho +GFB Compressed GIF image created by GIFBLAST gifblast.exe +GFF General feature format +GFO SGI Radiosity +GFT Font NeoPaint +GFT GEM-translator font file +GFX Instant Artist graphics Files Instant Artist +GFX PCBoard @X-coded colorful text GFX2COM - GFX2EXE +GHO Norton Ghost File (first file) Symantec +GHS Norton Ghost File (split file) Symantec +GHW GHDL Wave file GHDL/GTKWave data + file +GIB Chart Graph-in-the-Box +GIB GIMP animated brush +GID Global index of old Windows Help file Windows 3.0 - XP +GIF Compuserves' Graphics Interchange Format QPeg - Display - + (bitmapped graphics) CompuShow +GIW Presentation Graph-in-the-Box for + Windows +GKH Ensoniq Disk Image (VFX, SD, EPS, ASR, Ensoniq + TS) +GKS Graphics Kernel System +GL Animation format grasprt.exe, PV + GRASP GRAphical +GL Animation System for + Presentation +GLB Global module in Basic programs +GLM Datafile, KernelCAD model Glim, KernelCAD +GLO Global module in Basic programs +GLS Datafile Across +GLY Winword Glossary Microsoft Word +GM6 GameMaker Editable file as of version Game Maker + 6.x +GM81 GameMaker Editable file as of version Game Maker + 8.1.x +GMD GameMaker Editable file up to version Game Maker + 5.x +GMF CGM graphics file APPLAUSE +GMK GameMaker Editable file as of version Game Maker + 7.x or 8.x +GML GameMaker GML script file Game Maker +GML Geography Markup Language File Geography Markup + Language +GMOD Data Golgotha 3D model +GMP Geomorph tile map SPX +GMS Ghost Mouse Script +GMS Gesture and Motion File Formats +GMT Gene Matrix Transposed +GMT data RFactor car physics +GMX GameMaker:Studio Editable File as of 1.x Game Maker +GO Go source code file Golang +GOC Goc source code file Geoworks +GOE GOES graphic file +GOH Goc header file Geoworks +GP Geode parameter file Geoworks Glue +GP4 data Grand Prix 4 car + physics +GP5 Guitar Pro 5 song Guitar Pro 5 +GPH Graph Lotus 1-2-3/G +GPK Omnigo program package +GPL GIMP palette file (text) GIMP, Inkscape +GPX GPS eXchange Format +GR2 Screen driver Windows 3.x +GRA Datafile SigmaPlot +GrADS Metafile +GRAFFLE OmniGraffle graph file +GRASP Graphical System for Presentation +GRB T-FLEX CAD file Top Systems +GRB MS-DOS Shell Monitor file MS-DOS 5 +GRD Drivers for GRX (graphics library) GRX (c) Free Soft. + Found. + Image format used in the core of some +GRDNT very obscure customized operating + systems to represent gradients; see also + SCTOR + Grenoble Thermal +GRE data ellipsoids Plot + Program +GREENFOOT Greenfoot Project Greenfoot +GRF Graph file Graph Plus, DPlot, + and Charisma +GRFT Graph definition text file SELDM Postprocessor +GRIB Gridded Binary +GRN Drivers for GRX (graphics library) GRX (c) Free Soft. + Found. +GRP Group file Windows 3.x - Papyrus +GRP Pictures group PixBase +GRY Graphics format (RAW GREYz) + Script written in Google Apps Script, +GS used for automating tasks across online Google Apps Script + Google products +GS1 Presentation GraphShow +GS3 data GameStarter +GSA data Microsoft Office + Groove Space Archive +GSD Vector graphics Professional Draw +GSM Raw GSM 6.10 audio stream AWAVE +GSP Geometer's Sketchpad +GSW Worksheet GraphShow +GT7 RS7 Guided tour Redshift 7 +GTA data Microsoft Office + Groove Tool Archive +GTF Gene transfer format +GUP PopMail +GV GrandView outline file +GVO Data GFXFX Vector Object +GWI Groupwise File Local saved Email +GXL Graphics library Genus +GXK Secure Data encryption Format Galaxkey +GZ Archive GNU zip - WinZipNT +GZR data GunZ action replay + +H! On-line help file Flambeaux Help! Display + Engine +H! Pertext database HELP.EXE +H-- C—language header Sphinx C-- +H Header file (usually C language) Watcom C/C++ +H++ Header file C++ +HA Archive HA +HAL Data file Hyper Access Lite OS/2 +HAM Disk Drivers NPA Novell NetWare +HAM Hold And Modify Deluxe Paint image file +HAP Archive HAP3 +HAR HTTP Archive format (JSON-format web-browser W3C draft standard + log) +HBC Compressed Archive File (Shrink Algorithm) Hyperbac +HBC Compressed Archive File (Shrink Fast Hyperbac + Algorithm) +HBE Compressed, Encrypted Archive File (Shrink & Hyperbac + AES256-bit Encryption) +HBK MathCAD handbook MathCAD +HC Header file +HCG Document HCLab +HCGS Document HCLab +HDD data disk image +HDD HotDisc Designer label +HDF Amiga Hard Disk Image +HDF Help file Help Development Kit +HDF Hierarchical Data File graphics file SDSC Image Tools +HDL Alternate download file listing Procomm Plus +HDMP heap dumpfile +HDR Datafile Egret +HDR Message header text Procomm Plus - 1st Reader +HDR PC-File+ Database header +HDR SPOT image file +HDS Hierarchical Data System +HDW Vector graphics Harvard Draw +HDX Help index AutoCAD - Zortech C++ +HDZ Amiga Zip compressed Hard Disk Image +HEP Novell Help Librarian Data File Novell NetWare +HEX Hex dump +HFI HP Font Info file GEM +HGL Highlight groups definitions DN +HGL HP Graphics Language graphics file +HH C++ header file +HHH Precompiled header file Power C +HHP Help information for remote users Procomm Plus +HHP Microsoft HTML Help project Microsoft HTML Help Workshop + and Compiler +HI Game high scores table +HIN Molecule HyperChem +HIS History of executing/viewing/editing DN +HIS Yard Information File FYM +HKM Stores sound in a bitmapped graphics file +HLB Help library VAX +HLP old Windows Help file Windows 3.0 - XP, Help + Explorer Viewer +HLX Multi Edit help file MultiEdit 5.0 +HLZ Multi Edit packed help file MultiEdit +HMI Music format (MIDI) +HMM Alternate Mail Read option menu Procomm Plus +HMP Music format (MIDI) +HMP Hump Setup File - Obsolete as of version 2.4 FYM + (See SET and SWT files) +HNC CNC program files Heidenhain (?) dialog +HOF Hall Of Fame (game scores) +HOM CAD Software Data File PLXHOME +HP Printout file for HP printers/plotters (HP/ + GL) +HP8 ASCII text HP Roman8 character set NewWave Write +HP9 ASCII text HP Roman9 character set +HPF HP LaserJet fonts PageMaker +HPG see HPGL +HPGL Plotter file vector graphics AutoCad - Harvard Graphics + (Hewlett-Packard Graphics Language) +HPI Font information file GEM +HPJ Help project Microsoft Help Compiler for + Windows - HC.EXE +HPK Archive HPACK +HPM Alternate Main menu for privileged users Procomm Plus +HPM EMM text HP NewWave +HPM High Performance Map Quaestor 1.x +HPP C++ header file Zortech C++ - Watcom C/C++ +HPPCL Hewlett-Packard Printer Control Language +HQX Archive (ASCII Mac) BINHEX +HRF Graphics file (Hitachi Raster Format) +HRM Alternate Main menu for limited/normal users Procomm Plus +HRZ Graphics format SSTV +HS2 Monochrome image Postering +HSC 2-op FM music HSC tracker - hscplay.exe +HSH Disk image hash file DriveSnapshot +HSI Handmade Software Inc. graphics file almost Image Alchemy + JPEG +HST History file Procomm Plus +HTA HTML Application Microsoft Windows +HTM see HTML +HTML Hypertext Markup Language (WWW) Netscape - Mosaic - many +HTX Hypertext file +HUS Husqvarna Viking Embroidery Format Embroidermodder +HVE Hive file^[2] Microsoft +HWA Hollywood applet Hollywood +HWD Presentation Hollywood Designer +HWP Hangul Word Processor Document Hangul (word processor) +HWS Hollywood script Hollywood +HXM Alternate Protocol Selection menu for all Procomm Plus + users +HXS Microsoft Help 2 compiled help file Microsoft Windows, Help + Explorer Viewer +HXX C++ header file +HY1 Hyphenation algorithms Ventura Publisher +HY2 Hyphenation algorithms Ventura Publisher +HYC Data WordPerfect +HYD Hyphenation dictionary WordPerfect for Win +HYP Archive HYPER + +I Preprocessor output file Borland C Preprocessor +I SWIG interface file SWIG +IAK Internet Access Kit OS/2 +IAM Assembly file Autodesk Inventor +IAX Bitmap graphics (IBM Image + Access eXecutive) +IAX data InstallAnywhere.NET project +IBG PDS graphic file +IBM Archive (Internal IBM only) ARCHDOS +IBRO Robot save file Incredibots 2 +ICA Bitmap graphics (Image + Object Content Architecture) +ICB Targa ICB bitmap graphics many raster graphics editors +ICC ICC profile Color Configuration for color input or + output devices +ICE LHA Archive Cracked LHA (old LHA), Total Commander +ICFE IceFormula Equation Penguin George + Workspace +ICFM IceFormula Math Workspace Penguin George +ICL Icon Library +ICM ICC configuration +ICN ICON source code file +ICO Icon file ICONEDIT.EXE; Microsoft Windows +ID Disk identification file +IDB IDA database IDA +IDB VC++ Minimum Rebuild Visual C++ + Dependency File +IDC IDA C language source IDA +IDE Borland C++ 4.x IDE project BCW.EXE +IDF MIDI instrument description + or Intermediate Data Format +IDS IDA imported names format IDA +IDW Vector graphics IntelliDraw +IDW Drawing file Autodesk Inventor +IDX Index many - FoxPro; also unrelated Quicken + file format +IFD Form JetForm Design +IFF Interchange Format File EA Software - Convert (C) Villena - + (IFF) Amiga +IFF Sun TAAC Image File Format SDSC Image Tool +IFP Script KnowledgeMan +IFS Fractal image compressed Yuvpak + file +IFS Iterated fractal system file IFS Creation Kit, Apophysis +IFS Installable file system OS/2 + Flight tracks downloaded + from GPS devices in the +IGC International Gliding + Commission's prescribed + format +IGES Initial Graphics Exchange + Specification +IGF Inset Systems GCGW +IGF LasershowGen Frames LasershowGen +IGP LasershowGen Project LasershowGen +IHP Watcom help file whelp.exe +IHS Inbound History Bink/+ +IIW Power Point Image Importer + Wizard +IL hDC Designer Icon Lin dll + format +ILB Data Scream Tracker +ILG data LaTeX Index Generation log +ILK Outline of program's format Microsoft ILink incremental linker +IM Auran Jet indexed mesh file Trainz +IM8 Sun Raster graphics file +IMA Mirage vector graphics EGO - Chart - Autumn +IMA Disk image WinImage +IMG ADEX graphic file +IMG Disk Image NC 5.0 +IMG GEM bitmapped graphics file Ventura +IMG Image for Windows/Image for TeraByte, Inc. dba TeraByte Unlimited + DOS Disk image +IMG Vivid IMG file +IMI image Magellan Meridian map +IMI image Magellan eXplorist map +IMMODULES Module GTK+ +IMP Spreadsheet Lotus Improv +IMQ Image presentation ImageQ +IMZ Disk image WinImage +IN Design II for Windows INput + file +IN autoconf INput file +IN$ Installation file HP NewWave +IN3 Input device driver Harvard Graphics 3.0 +INB Test script Vermont HighTest +INC Include file several programming languages +IND Data Index dBASE IV +INDD InDesign Document Adobe InDesign + Sidecar file used by applications that +INF Information text file need to store file metadata on + (ASCII) filesystems that do not support the + metadata natively +INF Install script +INF OS/2 hypertext help system VIEW.EXE + file +INF Type 1 LaserJet font soft font installers + information file +INFO GNU info reader (output from info (Unix) + Texinfo) +INFO Icon Data (Amiga) +INGR Intergraph Raster File + Format +INI Initialization file +INK Pantone reference fills file CorelDRAW +INO Arduino file Arduino +INS Data WordPerfect +INS Ensoniq Instrument File Ensoniq +INS Installation script 1st Reader +INS Instrument music file + (Adlib) +INT Borland Interface Units +INT Program saved in Internal Signature + (semi-compiled) format +INT Source of Borland interface + module +INX Index Foxbase +IO Archive CPIO +IOB 3d graphics database in TDDD Imagine + format +IOC Organizational chart Instant ORGcharting! + 4DOS DESCRIPT.ION file (file 4DOS, NDOS, 4OS2, 4NT, TC, TCC, VC, DN, + descriptions like long ODN, NDN, Windows Commander, Total +ION filenames, comments, or Commander, Double Commander, XnView, + extended attributes) ACDSee, Newsbin Pro, V, as well as some + CUI LIB-based applications +IP Immortal Player file Immortal Player +IPA Apple iOS Application iPhone, iPod touch, iPad + Intellitec Program +IPC Configuration - used to Intellitec + configure vehicle + electronics +IPF Interchangeable Preservation SoftPres + Format +IPG iPod game file iTunes and iPod +IPH Hi-Res Image InterPaint +IPL Pantone Spot reference CorelDRAW + palette file +IPN Presentation File Autodesk Inventor +IPN Intecplan project Intecplan Business Plan Software + IPS Patching Format +IPS (International Patching Rom hacking community + System)^[citation needed] +IPSW iOS firmware file iPhone, iPod touch, iPad, Apple TV +IPT Part file Autodesk Inventor +IPT MultiColor Image InterPaint +IPT XnView IPTC template XnView, XnViewMP +IPTC XnView XML-based IPTC XnViewMP + template +IPYNB IPython Notebook Jupyter Notebook +IRRMESH static irrMesh files +IRS Resource (WordPerfect) WordPerfect + standard.irs +IRT Data IRIT 3D model +IRTR Graphicon-2000 Interactive + Real-Time PHIGS +ISD Spelling Checker dictionary RapidFile +ISH Archive ISH +ISMA Output Video file Islam Abusa'a Software +ISN InstallShield Installer InstallShield + Source File +ISO ISO-9660 table see: List of ISO image software +IST Digitrakker Instrument File AWAVE +IT Impulse Tracker music file Impulse Tracker +IT Settings intalk + Technical indicator, trading +ITF system or market scan source ProRealTime + code file +ITF Interface file JPI TopSpeed Pascal +ITL iTunes music library +ITN Itinerary file TomTom PNDs +ITR i-Tree project files i-Tree Software Suite +ITT IconTweaker Theme +IV SGI Inventor +IV-VRML Inventor VRML Format +IVE OpenSceneGraph 3D model +IVI Image file ImmerVision +IVL Lensflare file ImmerVision +IVP Panorama file ImmerVision +IVU User Interface file ImmerVision +IW Presentation flowchart IconAuthor - HSC InterActive +IWA Text file IBM Writing Assistant +IWB Information WorkBench Prodeo +IWD Call of Duty Map - Game Data Activision, Inc. + Archive +IWP Text file Wang +IX data dtSearch index +IZT Izl binary token file IZL + +J2C JPEG 2000 image +JA Mozilla archive omni.ja Mozilla Firefox 4, + Thunderbird +JAD Java Application Descriptor Mobile JAR, Java Games and + Applications +JAM Jam messagebase FTN software +JAM Jam music score Jam +JAR Java archive JAR, Java Games and + Applications +JAS see JASC +JASC Graphics format (JASC) +JAV see JAVA +JAVA Java source code file +JBD Datafile SigmaScan +JBIG Joint Bilevel Image Group +JBX Project file Project Scheduler 4 +JCN JobClock.Net Synch File +JEF Janome Embroidery Format Embroidermodder +JET Fax Hybrid JetFax +JFF see JFIF +JFIF JPEG File Interchange Format +JIF see JFIF +JMS Music format (JMusic file) UltraForce +JNLP Java Network Launching Protocol Java Web Start +JNR Jinx! file recording Jinx! LED Matrix control +JNX Saved data Jinx! LED Matrix control +JNX Garmin raster map file BirdsEye service + (subscription only) +JOB Gravostyle engraving pattern file Gravostyle/Gravograph +JOB QUEUE output file RT-11 +JOR Journal file SQL +JOU Journal backup VAX Edt editor +JP2 JPEG 2000 image +JPC Graphics Japan PIC +JPEG Joint Photographic Experts Group graphics QPeg - FullView - Display + file format +JPG Joint Photographic Group + backup of startup files (AUTOEXEC.BAT, +JPS CONFIG.SYS, 4DOS.INI) by installation of 4DOS 4DOS + (JP Software) +JRE Java Runtime Environment Java +JRN JMP journal JMP +JS JavaScript file script in HTML pages +JSON JSON (JavaScript Object Notation) Ajax +JSONLD JSON-LD, a JSON-based Serialization for + Linked Data + Dynamic pages running Web +JSP JavaServer Pages servers using Java + technology +JTF Fax Hayes JT Fax +JTF Graphics (TIFF file with JPEG compression) +JVX Data JavaView object +JW Text document JustWrite +JWL Library JustWrite +JZZ Spreadsheet Jazz + +K2A Data Prince of Persia 3D object +K3D Description of macro language 3DS 3DS +K7Z Keysight 7-Zip File Keysight PathWave FPGA +KAP Map Info Sea Chart +KAR Music format (Karaoke) ITune 1000.Corp +KAR Precompiled .prg for KARAT Rus. FOX+ 2.0 +KB Keyboard script Borland C++ 4.5 +KB Program source Knowledge Pro +KB K-Brief in XML format TCC's Set-Based Thinking™ Tools +KBA K-Brief Attachment TCC's Set-Based Thinking™ Tools +KBASIC Source KBasic +KBD Keyboard mapping LocoScript - Signature - Procomm + Plus +KBM Keyboard mapping Reflection 4.0 +KBS K-Brief in Encrypted format TCC's Set-Based Thinking™ Tools +KBZ K-Brief in Compressed format TCC's Set-Based Thinking™ Tools +KCL Lisp source code Kyoto Common Lisp +KD Koara Document Koara +KDB KeePass 1.x database file KeePass +KDBX KeePass 2.x database file KeePass +KDC Kodak Digital Camera (graphics) PhotoEnhancer by PictureWorks +KEP (unknown) (unknown) +KEX Kedit Macro File Kedit +KEXT macOS Kernel Extension^[3] macOS +KEY Datafile Forecast Pro +KEY Keynote presentation file Keynote +KEY Keyboard macros +KEY OS/2 archive .key-file (i.e. OS2.KEY) OS/2 +KEY Security file e.g. Shareware + Registration info +KEY Keynote iOS devices, Macintosh +KFN complex music format|^[4] Karafun Karaoke(R) +KFX Kofax Group GCGW +KFDK Keysight PathWave FPGA Design File Keysight PathWave FPGA +KIT Power Chords drum kit file Power Chord +KMC KatzReview's MegaCrammer +KML Kedit Macro Library Kedit + Keyhole Markup Language Google Earth +KMY data KMyMoney +KMZ Keyhole Markup Language (Zip Google Earth + compressed) +Knn Database key file Clarion +KNO Personal Knowbase data file Personal Knowbase +KO linux kernel object file linux kernel +KODU Kodu game save file Kodu Game Lab +KPL source code Phrogram +KPP Toolpad SmartPad +KPS IBM KIPS bitmap graphics +KR1 Kurzweil 2000 sample file AWAVE +KR2 Kurzweil 2000 sample file AWAVE +KRZ Kurzweil K2000 File Kurzweil +KS Source code KonsolScript Document +KS3 Data 3D Forgastest Editor object +KSM Pfaff Embroidery Format Embroidermodder +KT Kotlin source code Kotlin Programming Language +KTU Know The Unknown Online Service Packs Unknownsoft +KWB Knowledge WorkBench Prodeo +KYB Keyboard mapping FTP Software PC/TCP + +L LEX source code file +L Linker directive file WATCOM wlink +L LISP source code file +LA0 Datafile SCUMM index file +LAB Datafile NCSS - SOLO +LAB Mailing labels Q+E for Microsoft Excel +LAN Erdas image file +LAN LAN Drivers Novell NetWare +LANG Language file Minecraft, Skype +LAS Lasso File Lasso Programming Language + File +LASSO Lasso File Lasso Programming Language + File +LAY Word chart layout APPLAUSE +LBG Label generator data dBASE IV +LBL Label dBASE IV - Clipper 5 - + dBFast +LBM Graphics format (Amiga) Pic-view - Deluxe Paint +LBM Linear bitmap graphics XLib +LBO Compiled label dBASE IV +LBR .LBR Archive for CP/M and MS-DOS using + the LU program +LBR Display driver Lotus 1-2-3 +LBR EAGLE library file EAGLE (program)EAGLE +LBT Additional (FPT) label description file FoxPro +LBX Main (DBF) label description file FoxPro +LCF Linker Control File Norton Guides compiler +LCH Chart IBM Works for OS/2 +LCK Lockfile Paradox +LCL Data (FTP Software PC/TCP) +LCL Data FTP Software PC/TCP +LCN Lection WordPerfect +LCS Datafile ACT! History Files +LCW Spreadsheet Lucid 3-D +LD Long Distance codes file Telix +LDA Absolute binary file (load image) PDP-11, RT-11 +LD1 Overlay file dBASE +LDB Data filer database IBM Works for OS/2 +LDB Overlay file Microsoft Access +LDF Data filer form IBM Works for OS/2 +LDF Library definition file Geoworks Glue +LDT Labordatenträger, an xDT application Healthcare providers in + Germany +LE DOS/4GW executable image DOS/4GW PM 32X DOS Extender +LES Lesson (check *.cbt) +LEV Level file NetHack 3.x +LEX Dictionary Microsoft Word - Lexicon +LFL LucasArts resource file +LFD LucasArts resource file LucasArts games +LFT Laser printer font ChiWriter +LG Logo procedure definitions LSRHS Logo +LGO Logo for header and footer SuperFax +LGO Startup logo code Windows 3.x +LGP LG Plate file Lase Graphic Number plate + software +LGS LG Sign file Laser Graphic Signs + Software +LHA LHA Archive LHA/LHARC, Total Commander +LHW Amiga archive LHWARP +LIB Library file several programming + languages +LIC License file used by some programs to put + their license on disk +LICENSE License file used by some programs to put + their license on disk +LIF Archive +LIF CA Clipper packed file CA Clipper installer +LIF Logical Interchange Format data file Hewlett-Packard +LIM Archive LIMIT +LIN Line types AutoCAD +LIS Listing VAX +LISP LISP source code file +LIT Microsoft E-book file Microsoft Reader +LIT Web3D File Web3D +LIX Log file (history) Audit Command Language + (ACL) +LJ Text file for HP LJ II printer +LL LLVM Assembly Language llvm +LL3 LapLink III related file (document) LapLink III +LM Auran Jet LOD mesh table (text file to Trainz + control LODs) +LMP Doom lump (data file, commonly "demo" Doom - Doom2 + recordings) +LNG Language definition file +LNK Linker response file .RTLink +LNK Linker script +LNK Windows 95 shortcut Windows 95 +LNK Windows XP shortcut Windows XP +LOADERS Loaders GTK+ +LOCK Lockfile Various systems +LOD Load file +LOG Log file Numerous systems +LOM 3D Model Lock On: Modern Air Combat +LOVE LÖVE Game File LÖVE +LPC Printer driver TEKO +LRC Lyrics data +LRF Linker response file Microsoft C/C++ +LRF Unencrypted BroadBand eBook file Sony Librie eBook reader +LRMODULE Adobe Photoshop Lightroom Module Adobe Photoshop Lightroom +LRP Report IBM Works for OS/2 +LRPLUGIN Adobe Photoshop Lightroom Plug-in Adobe Photoshop Lightroom +LRS Language Resource File WordPerfect for Win +LRWEB Adobe Photoshop Lightroom Web Gallery Adobe Photoshop Lightroom +LRX Encrypted BroadBand eBook file Sony Librie eBook reader +LS LiveScript source code file +LSA Lightscape Technologies ASCII +LSA Lingvo system audio ABBYY Lingvo +LSB Lightscape Technologies Binary +LSC Leostream Connect file Leostream Corporation +LSD Lingvo system dictionary ABBYY Lingvo +LSP LISP source code file Xlisp, AutoLISP +LSS Spreadsheet Legato - IBM Works for OS/2 +LSS SYSLINUX Splash Screen Graphic SYSLINUX, XnView +LST Aus. BOM Hourly weather Data +LST Filelist FRQView +LST Keyboard macro 1st Reader +LST List file (archive index - compiler + listfile) +LST Listing (e.g. source code) +LST Map list Holux - Alan +LST Spool file Oracle +LST SLP output file RT-11 +LTA Data LithTech ASCII 3D object +LTM Form (Lotus Forms) Lotus +LUA Lua script file Microsoft Visual C++, + Notepad++ +LUD Lingvo user dictionary ABBYY Lingvo +LUW label data file Labels Unlimited for + Windows +LUX 2D and 3D graphics data file Foliomap and Spectramap +LUZ 3D graphics data file Spectramap CUDA +LWD Text document LotusWorks +LWO Lightwave Object Format +LWP Word processor IBM Works for OS/2, Lotus + Wordpro +LXF Lego Exchange Format Lego Digital Designer data + file +LXO Luxology scene modo3D software +LXT Temporal database file GTKWave data file +LY LilyPond Notation File LilyPond +LYR Lyrics (ASCII) +LYT Document Layout file Adminsoft Accounts +LZ Archive Lzip +LZD Difference file for binaries LDiff 1.20 +LZH LHA Archive LHA/LHARC, Total Commander +LZS LHA Archive LARC, Total Commander +LZW Archive LHWARP +LZX Amiga Archive LZX + +M Mathematica Package File Mathematica +M MATLAB M-File MATLAB +M Mercury Source File Mercury +M Source code Objective-C + Blizzard Entertainment +M2 WoW Model Object file games (World of Warcraft/ + Warcraft series) +M2TS MPEG 2 Transport Stream Various media playback + devices / software +M3U M3U playlist file Winamp, XMMS +M3U8 Unicode version of M3U playlist file Winamp, XMMS + (UTF-8) +M4 m4 macro file +M4A Advanced Audio Coding +M4V Advanced Video Coding (See MP4) +M4P Advanced Video Coding (Protected) iTunes +M4r iPhone ringtone iTunes and iOS devices +M7P Multilizer 2007 and 2009 localization Multilizer + project file +M8M 8MAM8 Model File +MAFF Mozilla Archive Format Mozilla Firefox (with + add-on) +MAI Mail VAX +MAK Makefile +MAK Project file VB – VC ++ +MAN User guide (manual) +MANAGER Accounting data file Manager – free accounting + software +MANIFEST Manifest file +MAP Color palette file +MAP Format data Micrografx Picture + Publisher +MAP Linker map file +MAP Map file (usually created by compilers) +MAP Map Atlas MapMaker +MAP Network map AccView +MAP Game map for Duke Nukem 3D +MAR Assembly program VAX Macro + MSN Explorer (possibly +MAR Microsoft ARchive other Microsoft products + too) + Mozilla Updater (used to +MAR Mozilla ARchive house binary updates to + products) +MAS SmartMaster set Freelance Graphics +MAT Data MATLAB +MAT Microsoft Access Table Microsoft Access +MAX MAX source code file +MAX Pfaff Embroidery Format Embroidermodder +MB Memo field values for database Paradox +MBK Multiple index file backup dBASE IV +MBP Metadata .mobi (Mobipocket) +MBR Master Boot Record File GRUB +MBX Mailbox data Eudora/ZERBERUS +MCA Minecraft "Anvil" world format Minecraft 1.2 and onward +MCC Configuration file Mathcad +MCD MathCad file MathCad +MCF Font file Mathcad +MCF Photo book or photo calendar layout file FotoInsight Designer +MCF Multimedia Container Format (predecessor + of Matroska) +MCI MCI command script Media Control Interface +MCL Multi Edit macro library Multi Edit +MCL Cartesian manipulator for laser systems +MCP Application script Capsule +MCP Printer driver Mathcad +MCR Minecraft saved world "region" file Minecraft (up to 1.1) +MCW Text file MacWrite II +MD Archive mdcd10.arc +MD Markdown-formatted text file Markdown +MD2 Quake 2 Model File id Software +MD3 Quake 3 Model File id Software +MD5 Doom 3 and Quake 4 Model File id Software +MD5 MD5 checksum md5sum, Total Commander +MDA Data Microsoft Access +MDA Microsoft Access system database Microsoft Access +MDB Microsoft DataBase Microsoft Access + Media Descriptor File, binary files in +MDF which the actual disc (CD/DVD) data is Alcohol 120% + stored +MDF Master Data File, a Microsoft SQL Server Microsoft SQL Server + file type + Measurement Data Format, a binary file automotive industry, +MDF format for vector measurement data developed by Robert Bosch + GmbH + Document save in high-resolution, +MDI created by MSOffice to scan documents Microsoft Office + (OCR) and turn them into a .DOC +MDL Model 3D Design Plus or Simulink +MDL Spreadsheet CA-Compete! +MDL GoldSrc Model File (Quake-Based Engine) Valve Corporation +MDL Source Engine Model File Valve Corporation +MDL Quake 1 Model File id Software +MDL Nintendo GameCube Luigi's Mansion Model Nintendo +MDM Modem definition file TELIX +MDMP Mini dumpfile +MDR Microdrive file ZX Spectrum emulator by + g.a.lunter +MDS Midi Session Sound Imp. +MDT Data table Microsoft ILink incremental + linker +MDX Multiple index file dBASE IV +MDZ Text description of music module Cubic Player – Cross-View +ME MultiEdit configuration MultiEdit +ME Text file READ.ME +MEB Macro Editor bottom overflow file WordPerfect Library +MEC MECCA source Maximus +MED Macro Editor delete save WordPerfect Library +MED Music format MED/OctaMED +Mediawiki Wiki markup most wikis +MEM Macro Editor macro WordPerfect Library +MEM Memory variable save file dBASE IV – FoxPro – Clipper +MEM Memos datafile Clarion +MEM Mnemosyne database Mnemosyne; other spaced + repetition software +MEQ Macro Editor print queue file WordPerfect Library +MER Macro Editor resident area (vakioalue) WordPerfect Library +MES Macro Editor work space file WordPerfect Library +MES Message +MET Document Omnipage Pro +MET Macro Editor top overflow file WordPerfect Library +MET OS/2 graphics metafile PICVIEW.EXE +MEU Menu group DOS Shell +MEX Macro Editor expound file WordPerfect Library +MEX MEX file (executable command) Matlab +MF Metafont file TeX +MFA Source code file Multimedia Fusion 2 / The + Games Factory 2 +MFF MIDI Cakewalk, MTPro 4 +MFM Music format DMP +MGF Font Micrografx +MGF Materials and Geometry Format +MGX Designer 4.1 Drawing Designer 4.1 +MHT Web Archive Single File +MIB Snmp MIB file +MID Standard MIDI file music synthetizers, Winamp +MIDI See MID +MIFF Magick Image File Format +MII Datafile MicroStat-II +MIME Message in MIME format (RFC822) + Nintendo proprietary MIDI file format +miniUSF for the Reality Signal Processor Nintendo 64 games + (Nintendo 64) +MIO MyInfo topic Milenix MyInfo +MIS Mission, used by many games +MIT Mitsubishi Embroidery Format Embroidermodder +MIX Object file Power C +MJS JavaScript Module +MK Makefile +MKE Makefile Microsoft Windows SDK +MKG Makefile +MKI Graphics format (Japan MKI) +MKI Japanese graphics MAKIchan format MagView 0.5 +MKS Data TACT + Media Player Classic, +MKV Matroska Multimedia Container Windows Media Player, + Matroska Splitter +ML3 Project Milestones 3.x +MLB Macro library file RT-11, Symphony +MLI 3DS Materials Libraries 3D Studio +MLRAW Data Moonlight Creator RAW + format 3D object +MLV LabVIEW MathScript + MultiMate Advantage II, +MM Text file FreeMind mind map file + (XML) +MM Source code Objective-C++ +MMF Mail message file Microsoft Mail +MMM Multimedia movie file, RIFF RMMP format MacroMind Director 3.x +MMO Memo writer file RapidFile +MMP Output video format from Bravado board +MN MuPAD Pro Notebook Workspace file of MuPAD + (integrated in Matlab) +MND Menu source AutoCAD Menu Compiler +MNG Map DeLorme Map'n'Go +MNT Additional (FPT) menu description file FoxPro +MNT Menu memo FoxPro +MNT Surface metrology or image analysis MountainsMap + document +MNU Advanced macro file HP NewWave + AutoCAD Menu Compiler – +MNU Menu Norton Commander – + Signature +MNU Microsoft Mouse menu (for DOS apps) +MNX Compiled menu file AutoCAD +MNX Main (DBF) menu description file FoxPro +MNY Account book Microsoft Money +MO Language file Sundry +MO? Packed mail FTN software +MOB Device definition file PEN Windows +MOBI eBook Mobipocket, Kindle +MOD AMPL model file AMPL +MOD Modula language source +MOD MODULA-2 source code file Claridiv id="MDZ"> MDZon + Modula-2 +MOD Module—used by Windows for DLL which Win + implement DOS support +MOD Music format (Amiga module) DMP – ST – MDP – VP +MODULES Module GTK+ +MOL MOD4WIN PlayList Mod4Win +MOL MDL Molfile RasMol +MOL2 Tripos’ Sybyl MOL2 Format SYBYL, RasMol +MON SYSGEN monitor build procedure RT-11 +MON Monitor description ReadMail +MOP MOPAC input file MOPAC, RasMol +MOV Animation format (Mac) QuickTime +MOV Movie file AutoCAD AutoFlix +MP2 Mpeg audio file Winamp, xing +MP3 MPEG audio stream, layer 3 AWAVE, CoolEdit(+PlugIn), + Winamp, many others +MP4 multimedia container format, MPEG 4 Part Winamp + 14 +MPA MPEG audio stream, layer 1,2,3 AWAVE +MPC Calendar file Microsoft Project +MPC Musepack audio +MPEG multimedia containter format, video, MPEG Player, Winamp + audio +MPG see MPEG +MPKG Multipackage installer script Mac OS X +MPL MediaRack Midi Playlist MediaRack +MPM MathPlan macro WordPerfect Library +MPP Project file Microsoft Project +MPPZ MagicPlot project file MagicPlot +MPQ Mo'PaQ Archive Blizzard games +MPR Generated executable menu file FoxPro +MPR Multilizer 5.x and 6.x localization Multilizer + project file +MPR Command & Conquer: Red Alert 2 map file Red Alert 2 +MPT Bitmap graphics (Multipage TIFF) +MPV View file Microsoft Project +MPX Compiled executable menu file FoxPro +MPX Video format +MPZ Miradi Project Zipfile Miradi +MQ4 MetaQuotes Language 4 (MQL4) source code MetaTrader 4 + file +MQ5 MetaQuotes Language 5 (MQL5) source code MetaTrader 5 + file +MQH MetaQuotes Language (MQL4 or MQL5) MetaTrader 4, MetaTrader 5 + header file +MRB Multiple Resolution Bitmap graphics file Microsoft C/C++ +MRC mIRC file mIRC +MRK Windows User Benchmark Win95 +MRS Macro Resource file WordPerfect for Win +MS Microsoft antivirus report MSAV +MSC Microsoft C makefile +MSC management saved console^[1] Microsoft; Microsoft MMC^ + [2] +MSD Secure and Encrypted File mysecuredelivery/Download +MSDL Manchester Scene Description Language +MSDVD Windows DVD Maker Project Windows DVD Maker +MSE Set file Magic Set Editor +MSG Message base (e.g. HMB) +MSG Message text file (ASCII) Microsoft Outlook +MSG ZVoice digitized voice file +MSI Windows Installer Package Windows Operating Systems +MSO Microsoft Word OLE Web Page Storage Microsoft Office + Stream +MSO Microsoft Outlook metadata for a Microsoft Outlook + Microsoft Word 2000 email attachment^[3] +MSP Bitmap graphics file Microsoft Paint +MSP Windows Installer Patch Microsoft Windows + Microsoft Producer (for +MSPRODUCER Media Project Microsoft PowerPoint XP/ + 2003) Project +MSQM data Microsoft Message Queuing + National Instruments for NI +MSN Project MultiSim-Electronic Circuit + simulator +MSS Manuscript text file Perfect Writer – Scribble – + MINCE – Jove +MST Document MS Test +MST Minispecification file Prosa +MST Setup script file Microsoft Windows SDK +MSW Text file Microsoft Word +MSX CP/M archive MSX +MTH Math file Derive +MTL Wavefront +MTM Music format MultiTracker +MTS Master Track Pro Files MTPro 4 +MTS data EA Sports F1 series, car + physics +MTS MPEG 2 Transport Stream Various media playback + devices / software +MTV MTV Ray Tracer graphic file +MTW Datafile Minitab +MU Quattro pro for DOS Menu definition file Quattro Pro +MUI Multilingual User Interface +MUM MATLAB CAPE-OPEN Unit Operation Model Matlab + file +MUM Microsoft update file Microsoft +MUS Finale music document Finale +MUS Music format (MIDI in Doom) +MUS Sound file MusicTime +MUZ Hover Game MIDI File Windows' Hover! Game^[4] +MVF Stop frame file AutoCAD AutoFlix +MVI Movie command file AutoCAD AutoFlix +MVO Data Mad Virgin 3D object +MVW Log file Saber LAN +MWF Animation ProMotion +MWS MWave DSP synths instrument AWAVE +MXF Material exchange format (RFC 4539, + SMPTE 377M) +MXL PackRat 5.0 support DLLs PackRat 5.0 +MXM Material Maxwell Render +MXP Adobe Extension File Adobe Dreamweaver and Adobe + Flash +MXP 3ds Max Configuration File 3ds Max +MXP MasterCook exported recipe +MXT Data Microsoft C +MYD a MyISAM data file in MySQL MyISAM, MySQL +MYI a MyISAM index file in MySQL MyISAM, MySQL +MYP Presentation MM Make Your Point +MZ Binary-format Map MazeEdit +MZE Text-format Map MazeEdit +MZG Binary-format Map Collection MazeEdit +MZX Binary-format Encrypted Map MazeEdit + +NAM Name Space Modules Novell NetWare +NAP Naplps file (VideoShow) EnerGraphics +NAPLPS North American Presentation Layer + Protocol Syntax +NB Text file Nota Bene +NB Wolfram Mathematica Notebook (see Wolfram Mathematica + Language) +NBF Nokia Backup File Nokia Mobile Phones +NBS Minecraft Note Block Studio file Minecraft Note Block Studio +NBU Nokia Backup Nokia Suite +NC Binary Data netCDF software package +NC Instructions for NC (Numerical Control) CAMS + machine +NC Name code program namec-git/namec software + package +NC Non-error checking preprocessed Goc Geoworks + source code +NCC CNC (Computer Numeric Control) control CamView 3D + file +NCD NC Drill File (Excellon Format, printed Most PCB layout software + circuit board hole definitions) +NCD Norton Change Directory support file Norton Commander +NCP Re-volt Collision file Re-volt + NetConnect data file. Contains +ND information on multi-user access to the Intuit QuickBooks + company file. +NDB Network database Intellicom - Compex +NDS Nintendo DS ROM file used for Homebrew Nintendo DS + and commercial (Game) files on DS +NDL Nodelist file +NDX Index file dBASE II - III - IV - dBFast +NEF Nikon RAW image format Nikon cameras + 학교생활기록부 작성 프로그램 +NEIS Korean Student Record Document (Student Record Writing + Program) +NEO Raster graphics file Atari Neochrome +NES iNES ROM image format +NET Network configuration/info file +NEU Pro/Engineer neutral file format PTC Pro/Engineer +netCDF Network Common Data Format +NEW Ameco Embroidery Format Embroidermodder +NEW New info +NFF Haines Neutral File Format +NFF WorldToolKit Neutral File Format +NFO Folioview database +NFO Help format Nextpage Folio +NFO Info file Compact NFO Viewer +NG Hypertext Database Norton Guide +NGC G-Code file Inkscape G-Code tools + extension +NGO NG linker object file NGML +NGS NG compiler source file NGC +NIF netimmerse/gamebyro file +NIL NIL Icon Hear-It +NITF National Imagery Transmission Format +NK2 e-mail address autocomplete archive Microsoft Office Outlook +NL Norton Desktop Icon Library +NLM Netware loadable module Novell Netware +NLS National Language Support file MS-DOS +NLX Form FormWorx 3.0 +nmf Node Map File Used by SpicyNodes +nnn Arj archive volumes up to 999 ARJ +nnn Netware unicode rule table (e.g. Novell Netware + 1250_Uni.036) +nnn News about smth with ext. of ver. number +nnn RAR archive volumes up to 999 RAR +NOT Notation +NOT Yard Notes File FYM +NOTE Notability Note File Notability +NP Project schedule (Nokia Planner) Nokia Planner +NPI Source for DGEN.EXE interpreter dBASE Application Generator +NPJ Nile Project Game Mission Editor +NPR Nuendo Project File Steinberg Nuendo +NRG Nero Disc Image File Nero Express / Burning ROM +NRW Nikon Coolpix RAW image Nikon +NSA media Nullsoft Streaming Audio +NSF database Lotus Notes +NSF Music module NES Sound File +NSS Norton screensaver module NC - NDW Screen Saver +NST Music module Amiga Noise Tracker +NSV media Nullsoft Streaming Video +NSX Compound index file SuccessWare SIX 3.00 +NT Startup files Windows NT +NT3 BAHN Layout file JBSS BAHN +NTF database design template Lotus Notes +NTH Nokia Theme File Nokia PC Suite +NTR Executable ASCII text file (strip header netrun31.zip + and rename) +NTS Executable ASCII text file (strip header netsend1.zip + and rename) +NTS Tutorial Norton +NTX Database index file Clipper 5 +NUF Message for new users on their 1st call Procomm Plus +NUG Video Nugget CBT Nuggets +NUMBERS Numbers spreadsheet file Numbers +NV NewViews DOS accounting database QW Page NewViews +NV2 NewViews accounting database QW Page NewViews +NWC Note Worthy document Note Worthy +NWS Info text file (latest news) (ASCII) +NXT Sound (NeXT format) + +O$$ Outfile Sprint +O Object file UNIX - Atari - GCC +O01 Typhoon vOice file AWAVE +OAZ Fax NetFax Manager +OB Object cut/paste file IBM LinkWay +OBD Microsoft Office Binder MSOffice +OBJ Compiled machine language code +OBJ Object code Intel Relocatable Object + Module +OBJ Wavefront Object +OBJF Data Triangle strips object +OBR Object browser data file Borland C++ +OBS Script ObjectScript +OBT Microsoft Office Binder Template MSOffice +OBV Visual interface ObjectScript +OBZ Microsoft Office Binder Wizard MSOffice +OCF Object Craft File Object Craft +OCD OCAD Map File OCAD +OCR Incoming fax transcribed to text FAXGrapper +OCT Musical file Octalizer +OCX New Custom Control's format in VB Visual Basic + 4.0 +OCX OLE custom control +ODB OpenDocument database LibreOffice Base +ODC Microsoft Office Data Connection +ODF OpenDocument formula LibreOffice Math +ODG OpenDocument drawing LibreOffice Draw +ODIF Open Document Interchange Format +ODL Object Description Language +ODL Type library source Visual C++ +ODM OpenDocument master document LibreOffice Writer +ODP OpenDocument presentation LibreOffice Impress +ODS OpenDocument spreadsheet LibreOffice Calc +ODT OpenDocument text document LibreOffice Writer + Microsoft e-mail software: +OEACCOUNT XML format, account files Outlook Express, Windows Mail, + Windows Live Mail, Microsoft + Outlook +OFD Form definition ObjectView +OFF Object File Format vector graphics + file +OFF Object File Format vector graphics +OFM PostScript font description file +OFN Microsoft Office documents Microsoft Office +OGG Ogg multimedia container format +OHB Source On Hand Basic +OHS Outbound History Bink/+ +OIF QuickBase file format +OKT Music (8 channels) Oktalyzer +OKT Music format Oktalyzer +OLB Object library VAX +OLD Backup file +OLI Text file Olivetti +OLK14CONTACT olk14_contact Microsoft Outlook +OLM Outlook for Mac Data File Microsoft Outlook for macOS +OLSR Configuration file olsrd +OMA Audio file Labelgate CD 2, MAGIQLIP2 +OMF Open Media Framework Avid Media Composer +OMG Audio file Sony compressed audio file + (ATRAC3) +ONE OneNote Section Microsoft OneNote +ONEPKG OneNote Single File Package Microsoft OneNote +ONETOC OneNote 2003 Table Of Contents Microsoft OneNote +ONETOC2 OneNote Table Of Contents Microsoft OneNote +OOF Data Outrage 3D Object Format + (Descent) +OOG Data WEBOOGL 3D object +OOM Swap file Shroom +OPJ Origin Project File Origin version 4.1 and later +OPN Active options Exact +OPT Options name used by many programs for + configuration information +OPT Delphi project options Borland Delphi +OPT Optimize support file QEMM +OPUS Ogg/Opus audio file mpv, mplayer, many others ( + official file format). +OPW Organization chart Org Plus for Windows +OPX Inactive options Exact +OR2 Calendar file Lotus Organizer +OR3 Calendar file Lotus Organizer +OR4 Calendar file Lotus Organizer +OR5 Calendar file Lotus Organizer +OR6 Calendar file Lotus Organizer +ORA Parameter file Oracle +ORC Orchestra MIDI file CSound +ORG Calendar file Lotus Organizer +ORG Older Origin Project Origin versions 4 or earlier +OSB osu! storyboard osu! +OSC OpenStreetMap Changeset OpenStreetMap +OSK osu! skin osu! +OSR osu! replay osu! + Microsoft e-mail software: +OST Offline Storage Table Outlook Express, Microsoft + Outlook +OSU osu! beatmap osu! +OSZ osu! beatmapset osu! +OTG OpenDocument drawing template LibreOffice Draw +OTB Over-the-air bitmap graphics +OTF Subtitle font information for media Media players / software which + content support PGS subtitling +OTH OpenDocument HTML document template LibreOffice +OTL Outline font description Z-Soft Type Foundry +OTL Ventura Publisher's Type Foundry + Outline Editor format +OTL The Vim Outliner A vim plugin +OTP OpenDocument presentation template LibreOffice Impress +OTS OpenDocument spreadsheet template LibreOffice Math +OTT OpenDocument text document template LibreOffice Writer +OTX Text file Olivetti Olitext Plus +OUT Output file +OUT Design II for Windows Output file + Open Virtualization Format package +OVA for packaging and distributing + virtual appliances +OV1 Overlay file (part of program to be + loaded when needed) +OV2 Overlay file (part of program to be TomTom Point of Interest + loaded when needed) +OVD Datafile ObjectVision + Open Virtualization Format +OVF descriptor file, an XML file which + describes the virtual machine + packed inside an OVF package +OVL Overlay file (part of program to be + loaded when needed) +OWL Web ontology language (OWL) file Protégé and other ontology + editors +OXT OpenOffice.org extension OpenOffice.org / LibreOffice + +P Database PROGRESS source code PROGRESS +P PASCAL source code file +P Parser source code file +P Picture file APPLAUSE +P Rea-C-Time application parameter ReaGeniX code generator + file +P0? Split archive UC2 SAS.EXE +P10 Tektronix Plot GCGW +P10 Certificate Request +P12 Personal Information Exchange "Crypto Shell Extensions" +P12 Another variant of the PFX + extension +P16 Music (16 channels) ProTracker Studio 16 +P22 Patch file (Patch22) Patch22 +P80 PLM-80 source +P86 PLM-86 source + Backupfile of a project in +p2v eventplanning software plan2viz + (windowsbased) +P3T PlayStation 3 Theme file PS3 Theme settings menu +PA1 Worktable PageAhead +PAC SBStudio II Package or Song SBStudio II +PAC STAD Image (graphics ?) +PACK ? ? +PACKAGE Contents The Sims 2 - Spore - The Sims 3 +PAD Automatic print definitions Produa +PAD Keypad definition Telemate +PAF For Personal Ancestral File data + files +PAGES Pages document file Pages +PAK Archive Pak +PAL Paint Shop Pro color palette (JASC PaintShop Pro, XnView + format) +PAL Palette file (RIFF format) Microsoft Draw - Win. Paintbrush + - XnView- many +PAL Palette file Diablo II +PAM PAM Portable Arbitrary Map Netpbm + graphics format +PAN Printer-specific file (copy to CorelDRAW + coreldrw.ink) +PAR Parameter file Fractint +PAR PARTS application Digitalk PARTS +PAR Permanent output file Windows 3.x +PAR Parity Archive +PAR2 Parity Archive v2 +PART Part of a download file +PAS Pascal language source Borland Pascal +PAT Gravis Ultrasound Patch Convert (c) Villena +PAT Hatch patterns AutoCAD - Photostyler +PAT Vector fill files CorelDRAW +PAT Pattern File Photoshop +PAT GIMP pattern +PB Fax FAXability Plus +PB Phonebook WinFax Pro +PB Proboard Conf. files Proboard +PB Setup file PixBase +PB1 Document First Publisher for Windows +PBA Powerbasic BASIC source code Genus +PBD Phone book FaxNOW! - Faxit +PBD Molecule (protein data bank) +PBI Powerbasic include file Genus +PBI Profiler Binary Input Microsoft Source Profiler +PBK Microsoft Network Phone book MSN +PBL Powerbasic library Genus +PBLIB Power Library PowerBASIC +PBM PBM Portable Bit Map graphics Jasc Media C + format +PBM Planar bitmap graphics XLib +PBO Profiler Binary Output Microsoft Source Profiler +PBO A file type used by Bohemia Arma 3, PBO Manager + Interactive +PBT ProBoards Theme ^[5] ProBoards remotely hosted + message boards +PBT Profiler Binary Table Microsoft Source Profiler +PC Text file containing IBM PC + specific info +PC3 Custom palette Harvard Graphics 3.0 +PC8 ASCII text IBM8 character set NewWave Write +PCA Perfect Clarity Audio Sony Vegas Pro + P-CAD, PCBExpress, and other P +PCB P-CAD database rinted Curcuit Board design + software +PCB Artwork design file (Circuit board Zuken CadStar + design) +PCC Cutout picture vector graphics PC Paintbrush +PCD Graphics format (Kodak Photo-CD) +PCD Kodak Photo-CD Image graphics file hpcdtoppm + (768x512) +PCD Pfaff Embroidery Format Embroidermodder +PCF Pixel Coordination Format +PCH Patch file +PCH Precompiled header Microsoft C/C++ +PCJ Multimedia authoring tool graphics IBM's Linkaway-Live + file +PCK Pickfile Turbo Pascal +PCL HP-PCL graphics data file HP Printer Command Language +PCL Old Pencil Animation File PCL Pencil2D +PCLX Pencil Animation File PCLX Pencil2D +PCM OKI MSM6376 synth chip PCM AWAVE +PCM PCM Authorware +PCM Pfaff Embroidery Format Embroidermodder +PCQ Pfaff Embroidery Format Embroidermodder +PCS Microsoft PowerPoint picture Microsoft PowerPoint - Microsoft + package ClipArt Gallery +PCS PCSurvey file PCSurvey by Softart - Land + Surveying Software +PCS Pfaff Embroidery Format Embroidermodder +PCT Bitmap graphics file Macintosh b&w PICT1 - color + PICT2 +PCW Text file PC Write +PCX PC paintbrush bitmap format QPeg - Display - ZSoft - PC + Paintbrush, XnView +PDA Bitmap graphics +PDB Packrat 5.0 data file Packrat 5.0 +PDB container format (envelope) for Palm OS, Garnet OS, Access Linux + Palm OS databases Platform, e-book +PDB debugging data Microsoft Windows +PDB Molecule (protein data bank) +PDD Adobe Photoshop Elements Image Adobe Photoshop Elements +PDE Pathology Data Exchange +PDE data PowerDesk Encrypted +PDE source code file Processing programming language +PDF Adobe's Portable Document Format Adobe Acrobat Reader +PDF Graphics file (ED-SCAN 24bit + format) +PDF Package Definition File +PDF PCAD Database Interchange Format Pdifin.exe - Pdifout.exe +PDF Print device information Netware +PDG Print Shop Deluxe data file +PDI Portable Database Image +PDI Protected Digital Identity SertintyONE +PDL Project Description Language file Borland C++ 4.5 +PDM Program Deskmate + PowerDesigner's physical data +PDM model (relational model) file PowerDesigner + format +PDM Visual Basic (VB) Project Visual Basic + Information File +PDN Image file Paint.NET +PDS PALASM Design Description +PDS Pds graphics +PDS Planetary Data System Format +PDS Pldasm source code file (hardware + assembly) +PDV Printer driver Paintbrush +PDW Document Professional Draw +PEB Program Editor bottom overflow WordPerfect Library + file +PED Program Editor delete save WordPerfect Library +PEM Program Editor macro WordPerfect Library + A text-based certificate file Applications that need to use +PEM defined in RFC 1421 through RFC cryptographic certificates, + 1424^[6] including web-servers +PEQ Program Editor print queue file WordPerfect Library +PER Program Editor resident area WordPerfect Library +PES Program Editor work space file WordPerfect Library +PET Program Editor top overflow file WordPerfect Library +pet package^[7] Puppy Linux +PEX Proboard EXecutable file (Executed Proboard + from PB) +PFA PostScript Font File +PFA Type 3 font file (unhinted + PostScript font) +PFB Adobe Acrobat document Adobe Acrobat Reader +PFB PostScript font Adobe Type Manager (ATM) + (Personal Filing Cabinet) contains +PFC e-mail, preferences and other AOL + personal information +PFC Text file First Choice +PFK Programmable function keys XTreePro +PFM PostScript Type 1 font metric file Microsoft Windows, Adobe Acrobat + Reader +PFM Windows Type 1 font metric file +PGN Portable Game Notation -Text Most chess playing computer + specification for Chess game applications +PFS Database (PFS:FILE) - text file PFS + (PFS:Write) +PFT Printer font ChiWriter + Applications that need to use +PFX An encrypted certificate file^[6] cryptographic certificates, + including web-servers +PG Page cut/paste file IBM LinkWay +PGD PGP cripted disk +PGI Printer Graphics File device PGRAPH library + driver +PGL HP Plotter vector graphics format +PGM Graphics format (Portable GrayMap) JASC Media C +PGM Program Signature +PGP Support file Pretty Good Privacy RSA System +PGS Manual page man4dos +PH Optimized .goh file Geoworks +PH Perl header file +PH Phrase-table Microsoft C/C++ +PHD PolyHedra Database +PHM Phone book DN - Lync +PHN Phone list UltraFax - QmodemPro +PHO Phone database Metz Phone for Windows +PHP PHP file +PHP3 PHP 3 file +PHP4 PHP 4 file +PHF Database File Nuverb Systems Inc: Donarius +PHR Phrases LocoScript +PI2 Portrait Innovations High Portrait Innovations Studio2 + Resolution Encrypted Image file (proprietary) +PIC 123 Vector graphics format CShow - Alchemy - Paint (Pictor) +PIC Bitmap graphics file Macintosh b&w PICT1 - color + PICT2 +PIC Lotus picture +PIC PIXAR picture file SDSC Image Tool +PICT Macintosh Picture +PIE GlovePIE script file GlovePIE +PIF OS/2 graphics metafile PICVIEW.EXE +PIF Program Information File Windows 3.x, 9x, NT +PIF Vector graphics GDF format file + (IBM mainframe computers) +PiM Pascal Text Mode Image File The Ultimate Draw +PIPE PIPE-FLO project design file PIPE-FLO Professional +PIT Compressed Mac file archive unpackit.zoo + created by PACKIT +PIT Partition Information Table for Odin3 + Samsung's smartphone with Android +PIT File used to connect to a remote Dell (previously Quest) + system. vWorkspace +PIV Pivot Stick Animator file Pivot Stick Animator +PIX Alias image file SDSC Image Tool +PIX Inset Pix +PJ Project CA-SuperProject +PJT Additional (FPT) project FoxPro + description file +PJX Main (DBF) project description FoxPro + file +PK PacKed bitmap font bitmap file + (TeX DVI drivers) +PK Peak file Cool Edit +PKL Pickle file Python object serialization +PK2 Quake 2 data file id Software +PK3 Quake 3 data file id Software +PK4 Doom 3 and Quake 4 data file id Software +PKCS12 Another variant of the PFX + extension +PKA Archive PKARC +PKG Installer script Next, Mac OS X, Sony PS3 +PKG P-CAD database P-CAD +PKPASS Wallet pass Apple Wallet +PKT Fido message packet FTN software +PL Palette Harvard Graphics +PL Perl source code file +PL Prolog source code file +PL Property List font metric file TeX +PL IRAF pixel list IRAF astronomical data format +PL1 Room plan 3D Home Architect +PL1 PL/I source file PL/I compilers +PL2 Palette Diablo II +PL3 Chart palette Harvard Graphics 3.0 +PLA Playlist +PLANTUML UML Diagram (also PU) PlantUML +PLB FoxPro library FoxPro +PLB P-CAD library P-CAD +PLC Add-in file (functions - macros - Lotus 1-2-3 + applications) +PLC P-CAD database P-CAD +PLD PhotoLine Document PhotoLine image processing +PLE Encrypted Chat Log Messenger Plus! Live Plugin - + Log viewer +PLI PL/I source file PL/I compilers +PLIST Mac OS Property List, also used on Apple's Property List Editor + iOS, NeXTSTEP, and GNUstep +PLL Prelinked library CA Clipper +PLM DisorderTracker2 music module AWAVE +PLN Spreadsheet WordPerfect for Win +PLP Playlist +PLP Messenger Plus! Sound Pack Messenger Plus! Live Plugin +PLS Playlist file WarpVision (OS/2) +PLSC Messenger Plus! Script Pack Messenger Plus! Live Plugin +PLSK Messenger Plus! Skin Pack Messenger Plus! Live Plugin +PLT HPGL plotter file vector graphics AutoCAD +PLT Output file for ploter +PLT P CAD: Output file editor for P CAD + PCPLOT or PCPRINT +PLT Page Magic 2.0 paper format Page Magic 2.0 +PLT Palette +PLT Table for .pll CA Clipper +PLUGIN Plug-in macOS +PLY Data PopMail +PLY Presentation screen Harvard Spotlight +PLY ZipPack +PLY Polygon File Format or the 3D Scanners + Stanford Triangle Format. +PLY2 Data PLY2 object +PM Auran Jet progressive mesh file Trainz + (obsoleted by IM and LM) +PM Perl module +PM Bitmap graphics Presentation Manager +PM3 PageMaker 3.0 data file PageMaker 3.0 +PM4 Document PageMaker 4 +PM5 Aldus PageMaker 5.0 publication Aldus PageMaker +PMA PMarc Archive +PMC Graphics A4TECH Scanner +PMI OS/2 V3 SVGA PMI-File Svga.exe +PMI PhatPad note PathWare +PMM Program file Amaris BTX/2 +PMP PhotoMorph Project PhotoMorph +PN3 Printer device driver Harvard Graphics 3.0 +PNG Portable Network Graphics +PNCL Pinnacle file Pinnacle by Optys Tech + Corporation +PNF Pre-compiled Setup Information Microsoft Windows + file +PNM PBM Portable aNy Map graphics file +PNT Macintosh painting +PNT Pointlist segment FTN software +PNT QWK reader pointer file MarkMail 2.x +POD UNIX perldoc File ("Plain Old pod2man, pod2html + Documentation") +POF Altera FPGA programming file Altera Quartus + (External Flash) +POH Optimized .goh file Geoworks +POL InnovMetric Software Polygon + Models Format +POLICY Group Policy File Microsoft Windows +POLY Data Patrick Flynn's Poly Format - 3D + object +POP Messages index PopMail +POP Pop-up menu object dBASE Application Generator +POT Microsoft PowerPoint template +POV Raytraced graphics image Persistence Of Vision +POW Power Chords instrument/song file Power Chords +PP Amiga archive POWERPACKER +PPA Microsoft PowerPoint Add-in +PPB Button bar for Print Preview WordPerfect for Win +PPD PostScript printer description + file +PPJ Premiere Project Premiere +PPK Archive (using for many PPK + distributives) +PPL PolaroidPalettePlus ColorKey Harvard Graphics 3.0 + device driver +PPM Graphics format (Portable JASC Media C. + PixelMap) +PPO Preprocessor output CA Clipper 5.* +PPP Publication PagePlus +PPS Storyboard Personal Producer +PPS Microsoft PowerPoint Slideshow + (stand alone slideshow) +PPT Microsoft PowerPoint Presentation Microsoft PowerPoint +PPTX MS Office Open-XML Presentation Microsoft PowerPoint +PPSX MS Office Open-XML Auto-Play Microsoft PowerPoint + Presentation +PR1 Packrat 4.0 data file Packrat 4.0 +PR2 Packrat 4.x data file Packrat 4.x +PR2 Presentation Aldus Persuasion 2.x +PR2 Printer driver dBASE IV +PR3 PostScript printer driver dBASE IV +PR3 Presentation Aldus Persuasion 3.x +PRC container format (envelope) for Palm OS, Garnet OS, Access Linux + Palm OS databases Platform, Mobipocket + "Product Representation Compact", +PRC for embedding 3D data in a PDF CAE and CAM applications + file +PRD Printer driver +PRE Presentation Freelance Graphics +PRE Settings Programmer's WorkBench, + Microsoft C/C++ +PRE Stork graphic file +PRF CheckIt Pro v1.0 data file CheckIt Pro 1.0 +PRF Pixel Run Format graphics file Improces - Fastgraph +PRF Printer driver dBASE IV +PRF Profiler output +PRG Program source code (e.g. Clipper CA Clipper + language) +PRG Program source dBASE IV - FoxPro - Clipper 5 - + dBFast +PRG Program Atari +PRI Printer definitions LocoScript +PRJ Borland C++ IDE project file BC.EXE - BCW.EXE +PRJ Mkd (Unix command) Mkd project file to extract + documentation +PRK SimPark Saved File SimPark +PRM Parameters +PRN Printer driver Signature +PRN Text file Lotus 1-2-3 - Symphony +PRN Usually printer output file +PRO Profile used by many programs to store + configuration data +PRO Graphics profile file DOS +PRO Proboard conf. file Proboard +PRO Punch! Home Design File Punch! Home and Landscape +PRO Prolog language source +PRO PROLOG source code file +PROJ Project File (Interface Builder) NeXT +PROPERTIES Java properties file Java applications +PROTO Message specification Google Protocol Buffers +PRP Plasma Registry Page Plasma (engine) +PRR The Perfect Resume data file Perfect Resume +PRS Norton Viewer DLL file +PRS Presentation Harvard Graphics Win +PRS Printer Resource e.g. fonts WordPerfect for Win +PRS Procedure dBASE IV +PRT P-CAD component P-CAD +PRT Part or Drawing Cadkey +PRT Printer driver Dr. Halo +PRX Compiled program FoxPro +PS Document in PostScript format adobe +PSA Archive (Pretty Simple Archive) PSA.OUT (GNU) +PSB For big Photoshop files Photoshop Document +PSD Design II for Windows Process + Simulation Diagram +PSD Periscope Debbuger Def file Periscope +PSD Photoshop bitmap file Photoshop document +PSE PyMOL session^[8] +PSE Truncated form of PSEG (see below) +PSEG Bitmap graphics IBM printer Page SEgment +PSF Outline PostScript printer font ChiWriter +PSM Music format (Protracker Studio Protracker - MASI + Module) +PSM Symbol table of IDE Turbo Pascal +PSM 3D Model 18 Wheels Of Steel +PSM1 Windows Powershell module^[9] Windows Powershell +PSMODEL PowerSHAPE Model PowerSHAPE +PSN Presentation file for Sound Script Win +PSP image file with layers Paint Shop Pro (all versions) +PSPPALETTE Paint Shop Pro color palette (JASC Paint Shop Pro 8.0 and newer^ + format) [10] +PSQ Premiere Sequence Premiere +PST Postbox file BMail +PST Archive File Microsoft Outlook +PSV PlayStation 2/PlayStation 3 saved PlayStation 2 and PlayStation 3 + game +PSW File w/ passwords for any program/ many + game +PS1 Windows Powershell script^[9] Windows PowerShell +PT Game crack Player Tools +PT Kodak Precition Color Management + System +PT3 Device driver Harvard Graphics 3.0 +PT3 Template PageMaker 3 +PT4 Template PageMaker 4 +PT5 Aldus PageMaker 5.0 publication Aldus PageMaker + template +PTB Power Tab Software Power Tab Editor +PTB Script PubTech BatchWorks +PTF PlayStation Portable Theme file PSP Theme settings menu +PTF Pro Tools Session File Digidesign Pro Tools +PTG Panasonic Title Graphics +PTL Premiere Title Premiere +PTM Macro PubTech BatchWorks +PTM Music format +PTM Page Magic 2.0 template Page Magic 2.0 +PTN Pattern Cadkey +PTN Pattern CarveWright/CompuCarve Designer + PedFast Technologies Pedigree The Breeder's Standard, iPed, +PTPED Database^[11] The Cattery's Standard, + Equestrian's Standard +PTR OS/2 cursor image file ICONEDIT.EXE +PTR QWK reader pointer file QMail +PTU Performer Terrain Utilities +PTX Pro Tools 10 session file Avid Pro Tools +PU UML Diagram (also PLANTUML) PlantUML +PUB Package File Exstream Dialogue +PUB Page template Microsoft Publisher +PUB Public key ring file Pretty Good Privacy RSA System +PUB Publication Ventura Publisher - 1st + Publisher +PUD Warcraft II Map file Warcraft II +PUT Archive PUT +PUT Graphics format WScan +PUZ Microsoft Publisher "Packed and Microsoft Publisher, many file + Go" archive archivers with CAB support +PVD Script Instalit +PVK Private Key File Microsoft Authenticode +PVL Library Instalit +PVM Texture Files PVMEdit +PVT Local Fidonet pointlist FTN software +PW Text file Professional Write +PWF Workflow Files Mac OS X Server Podcast Producer +PWK Workspace File PolyWorks +PWL Password List +PWP Text document Professional WritePlus +PX Paradox 3.0 file Paradox 3.0 +PXP 3DS Process file 3D Studio +PXR Pixiar Picio AltamiraComposer +PXZ Compressed file to exchange media PSALMO + elements +PY Python script file Python interpreter +PYC Compiled Python module Python interpreter +PYD Python DLL Python interpreter +PYI Cognos Powerplay Model +PYK PYK Compressed File PYK +PYO Optimized compiled Python module Python interpreter +PYW Python Script Without Console Python interpreter + Window +PZD Default settings Pizazz Plus +PZI Graphics format PZP +PZO Overlay file Pizazz Plus +PZP Palette Pizazz Plus +PZS Settings Pizazz Plus +PZT Transfer file Pizazz Plus +PZX Swap file Pizazz Plus + +Q0 Q0 graphic file +Q3S Data Quick3D Scene +QAG Quick Access Group Norton Desktop +QAP Application Omnis Quartz - Omnis Studio +QB Tony Hawk's Pro Skater series scripting + files +QBB Quickbooks Backup File +QBE Saved query (Query By Example) dBASE IV - Quattro Pro +QBO Compiled query dBASE IV +QBW Spreadsheet QuickBooks for Windows +QCH Qt Compressed Help Trolltech Qt Assistant +QCP Mp3 extension on Motorola ringtones Motorola Phones +QDF Data file Quicken data file +QDK Backup of startup files created by Optimize QEMM +QDn Data file - segment n Omnis Quartz- Omnis Studio +QDV Graphics file Steve Blackstock Giffer +QDR Configuration file Q-Dir +QEF Query file Q+E for Microsoft Excel +QFP QUICKfind Server Plug-in IDM QUICKfind Server +QFX Quicken-specific implementation of the OFX Intuit Quicken + specification +QFX Fax QuickLink +QG3 Data QuickMem Greek +QHC Qt Help Collection Trolltech Qt Assistant +QHCP Qt Help Collection Project Trolltech Qt Assistant +QHP Qt Help Project Trolltech Qt Assistant +QIF Quicken Interchange Format Intuit Quicken +QIZ World book quiz World Book +QLB Quick library Microsoft C/C++ +QLC ATM Type 1 fonts script Adobe Type Manager +QLP Printer driver QuickLink +QM4 Options or services file QMail 4.x Mail Door +QPR Generated query program FoxPro +QPR Print queue device driver OS/2 +QPX Compiled executable QBE query file FoxPro +QRMX Quick Risk Matrix data file Quick Risk Matrix by + Riskfiniti + QuickReport +QRP Database report file + ^[12] + +QRS Equation Editor support file WordPerfect for Win +QRT Graphics format (QRT ray tracing) +QRY Query dBASE IV +QT QuickTime movie (animation) +QTVR QuickTime VR Movie +QUOX Question Object Document Quobject Designer and Quobject + Explorer +QVD QlikView Document (Data) QlikView Compressed Database + File +QVW QlikView Document (View) QlikView Presentation File +QWK QWK reader message file +QXD Document QuarkXPress +QXL Element library QuarkXPress + +R Ratfor file Ratfor +R Script file R +R00, Part of a multi-file RAR archive RAR +R01, ... +R2D Reflex 2 datafile Reflex 2 +R3D Red Raw Video (raw video data created with a Red Camera + Red camera) +R8 Raw graphics file (one byte per pixel) plane PicLab + one +R8P PCL 4 bitmap font file Intellifont +RA Remote Access conf. files RA +RA0, Part of a multi-file RAR archive RAR +RA1, ... +RAD 2-op FM music Reality AdLib Tracker +RAD Radiance Radiance +RAL Remote Access Language file Remote Access +RAM Ramfile RealAudio +RAP Flowchart RAPTOR +RAR Archive RAR +RAS Graphics format SUN Raster +RAT Datafile (RATS) +RAW HSI raw graphic file +RAW PCM Signed Raw Sound File +RAW QRT graphic file +RAY Rayshade +RB Ruby Script file Ruby Script +RBF Datafile Rbase +RBXM ROBLOX "model" ROBLOX +RBXL ROBLOX "level" ROBLOX +RC Configuration file emacs +RC Resource Compiler script file Microsoft C/C++, + Borland C++ +RC Resource Script Resource Writer +RC UUPC configuration files UUPC +RC Windows resource compiler script RC.EXE -Resource + WorkShop - OS/2 +RCG Netscape newsgroup file (netsc.rcg) +RCT Roller Coaster Tycoon +RData Data file R +RDF Compiled UIC source code Geoworks UI Compiler +RDI Device-independent bitmap file (RIFF RDIB + format) +RDP RDP connection Remote Desktop + connection +RDX Datafile Reflex +REC Archivation protocol ARCSERVE +REC Datafile EpiInfo +REC Record file Sprint +REC Windows Recorder Macro File WinRecorder +RED Path info Clarion Modula-2 +RED REDuced nodelist file T-Mail nodelist + Compiler +REF Cross-reference +REG OLE Registration file Windows 3.x +REG Registration information or key +REL Foreground job relocatable file RT-11 +REM Remarks definition Sourcer +REM Remarks +REP QWK reader reply file +REP Report file used by many applications +REP Report Report Designer - + CodeReporter - DataBoss +REQ File request FTN Software +RES Compiled resource Microsoft C/C++, + Borland C++ +RES DBASE resources dBASE IV +RES Windows compiled resource package Win +REV Revision file Geoworks +REX PharLab executable file (old format) PharLab +REX Report definition Oracle +REX Rexx language source file Rexx +REZ Resource file +RF Sun raster graphics file +RFA 3D BIM Model Family Element Autodesk Revit +RFM Report ForMat (script for customized report) Nuverb Systems Inc: + Donarius +RFT DCA/RFT Revisable Format Text file IBM DisplayWrite + 4.0-5.1 +RGB SGI RGB image file (RAW) SDSC Image Tool +RGX Symbol tables etc. info ReaGeniX code generator +RH Resource header file Borland C++ 4.5 +RH Windows resource file header RC.EXE +RHistory Command history logfile R +RI Data Lotus 1-2-3 +RIB Graphics (Renderman Interface Bytestream) 3D Reality +RIC Fax Ricoh +RIF RIFF bitmap graphics (Resource Interchange Fractal Design Painter + File Format) +RIN Sound recording participants and information Soundways RIN-M + (Recording Information Notification) +RIP TeleGrafix Remote Imaging Protocol Maximus 3.0 +RIX Graphics (ColoRIX Image File) ColoRIX +RL4 Bitmap graphics +RL8 Bitmap graphics +RLA Wavefront raster image file SDSC Image Tool +RLB Data hgw.rlb Harvard Graphics Win +RLC Graphics 1bit/pixel scanner output +RLD Norton Commander 5.0 temp file NC 5.0 +RLD OSIMapDef. RecLoad Definition +RLE Utah Run Length Encoded rasterfile graphic SDSC Image Tool + file +RLZ REALIZER source code file CA-Realizer +RM RealMedia RealPlayer +RMB data RegistryMaster +RMI Windows alternate synthesized sound format RIFF RMID format +RMK Make file CA Clipper - RMAKE +RMVB RealMedia Variable Bitrate RealPlayer +RN XPL program for Nota Bene users +RN4 Random Numeration 4 Encryption Program File +RNA Real Native Application File +RND Rendering Slide AutoCAD AutoShade +Rnn Multi volume RAR archive RAR +RNO Runoff file VAX +ROL FM music Adlib Music File Roland +ROM Read Only Memory image in emulators, AONs, + etc. +ROO CODASYL DBMS Database Root Oracle +RPB Data report file used by CP Backup CP Backup +RPC Rich Photorealistic Content ArchVision +RPD Database RapidFile +RPF AutoCAD pattern ACAD +RPL Text document Replica +RPM Red Hat Package Manager Red Hat Linux +RPT Report file used by many applications +RRD Reduced Resolution Dataset ESRI (GIS) +RS Data file Amiga Resource - + Reassembler +RS Rust language source +RS_ Resource fork of a Macintosh file Mac-ette +RSC Resource file ViewMax - many +RSDF RSD Link Container JDownloader +RSL Application - Project resolver one +RSL Resource Library used by PC Tools for Windows PC Tools - Win +RSP Response file (text file containing input + expected by e.g. LINK) +RSP Response File OS/2 +RST reStructuredText Docutils +RSY FLEXIT Multishot Survey Raw Data file FLEXIT +RTF Rich Text Format text file (help file script) many - Microsoft Word +RTFD RTF-Packet NeXT +RTL HP RTL graphic file +RTL Run-Time library Norton Utilities +RTL Text file +RTP RTPatch software update package data file Pocket soft patch +RTS Realizer executable file +RTS Runtime library file CA-Realizer +RUL Echo-conference rules +RUN AMPL script file AMPL +RUN Makeself shell self-extracting archive shell +RUN PC Tools for Windows batch file PC Tools +RUNZ pseudo-executable file, used in Portable Apps RUNZ Framework + and software installers for Super OS +RUS Russian text +RV Mobile pricelist data file Mobile +RVF TRichView +RVW Review +RVT 3D BIM Model file Autodesk Revit +RV Raw Wind Data +RWS Borland Resource Workshop symbol file Resource Workshop +RWS Resource Workshop data file Borland C++ +RWX Criterion RenderWare +RWX MEME Shape File +RWX Script RenderWare +RWZ Microsoft Outlook Rules Wizard File Microsoft Outlook +RXD Reflex 1 datafile Reflex 1 +RZK File Crypt password file All text editors +RZX File Crypt encrypted file File Crypt (Akte + Krypta, Kriptirnik) + +S$$ Temporary sort file Sprint +S ASSEMBLY source code file unix +S Multi Edit macro file source Multi Edit +S MSTS Shape file MSTS +S19 Motorola ASCII format of executables +S1K S1000 Simnet Format +S3I Digiplayer/ST3 Sample File Digiplayer - ST3 +S3M Music (16 channels) Scream Tracker 3.0 - DMP +S7I Seed7 library / include file Seed7 interpreter and compiler +SA? Packed mail FTN software +SAB Saber file Star Wars: Jedi Knight Jedi + Academy +SAF see SAIF +SAFE SafeIT Encrypted +SAIF Spatial Archive Interchange Format +SAL Datafile SORITEC +SAN LucasArts' SMUSH/INSANE animation +SAM Ami Pro data file Ami Pro +SAM Text file Samna - Lotus Ami/Ami Pro +SAP Atari SAP music format +SAR Archive SAR +SAS SAS Program File SAS System +SAT ACIS ACIS .sat +SATS Static source ATS +SAV Backup file (saved file) +SAV Configuration +SAV Executable RT-11 +SAV SPSS "System File" PSPP +SAV Saved game state Spider Solitaire (Windows) +SAVER Screensaver Mac OS X +SB Audio file (signed byte) +SB Raw Signed Byte (8bit) data AWAVE +SB Raw Signed PCM Byte 8bit data AWAVE +SB Scratch project Scratch +SB2 Scratch 2.0 project Scratch +SBD Storyboard Storyboard Editor +SBH Header ScriptBasic +SBI Sound Blaster Instrument file + (Creative Labs) +SBK Emu SoundFont Bank (AWE32 Bank) Convert (c) Villena +SBL Stony Brook Pascal library SB Pascal +SBP DML program Superbase 4 +SBR Support file Source Browser +SBT Notes related to record Suberbase 4 Windows +SBX For experimental extensions to Used by scratchX (scratchx.org) + Scratch +SBX Sequenced Box container Used by SeqBox +SC Display driver Framework II +SC PAL script Paradox +SC Script Borland Paradox +SC3 Renamed dBASE III screen mask file dBASE IV +SC3 Screen device driver Harvard Graphics 3.0 +SC3 Saved City SimCity 3000 +SC4 Saved City SimCity 4 +SC4 Game Scenario RollerCoaster Tycoon Deluxe/ + Expansion Pack +SC6 Game Scenario RollerCoaster Tycoon 2 +SCA Datafile SCA +SCALA Scala source code file Scala (programming language) +SCC Text file + SCODOL film recorder (Scan +SCD Conversion Object Description SCODOL + Language) +SCF Standard Chromatogram Format DNA Baser Assembler +SCF Standard Chromatogram Format Staden package +SCF ? SimAnt or SimTown ?? +SCF Windows Explorer Command (e.g.: show Windows Explorer + desktop.scf) +SCF Multimedia show ScoreMaker +SCF Spelling checker configuration file Symphony +SCH Project schedule Schedule Publisher +SCH EAGLE schematic file EAGLE (program)EAGLE +SCH Circuit Design Schematic P-CAD - Orcad - Protel +SchDoc Circuit Design Schematic Protel - Altium Designer +SCHEMATIC MCEdit Schematic file MCEdit Tool for Minecraft +SCI Fax SciFax +SCI System Configuration Information +SCM Scheme source code file +SCM Schematic file (Circuit Diagram for Zuken CadStar + PCB design) +SCM StarCraft mission +SCN SCeNe RTrace +SCN Screen file Kermit +SCO High score +SCP Script BITCOM +SCPT Script macOS +SCPTD Script bundle macOS +SCR Any other screen system +SCR DEBUG source code file DOS Debug +SCR Forth screen (source) file Forth +SCR Screen - screen snapshot dBASE IV - Procomm Plus +SCR Screen font LocoScript +SCR Screen saver Windows 3.x +SCR Screen snapshop +SCR Script file source TeleMate - Kermit - 1st Reader +SCRIPT Script +SCT Additional (FPT) screen description FoxPro + file + Raster graphics format used by some +SCTOR very obscure custom operating + systems +SCX Chart Stanford Chart +SCX Graphics format ColoRIX +SCX Main (DBF) screen description file FoxPro +SCX StarCraft: Brood War scenario StarCraft: Brood War +SCY Security file ReaGeniX +SD Sound Designer I audio file AWAVE +SD7 Seed7 source file Seed7 interpreter and compiler +SDA Fidonet's Software Distribution + Network file archive description +SDC Video DigimaxMaster - Samsung NV3 +SDC Synopsys Design Constraints Electronic Design Automation + Tools +SDF Microsoft SQL Server Compact Edition + database file +SDF Flight data microdrones GmbH +SDF Source definition file Sourcer +SDF System Data Format file (fixed + length ASCII text) +SDI Software Distribution Network Info + file +SDK Roland S-550/S-50/W-30 Disk Image +SDL Alias Wavefront Scene Description + Language +SDML Spatial Data Modeling Language +SDN Software Distribution Network pak251.exe + compressed file archive +SDR SmartDraw File SmartDraw Pro +SDS MIDI Sample DUMP Standard File + Self Defining Structure provides for geographic information systems +SDS N-dimensional very large datasets and relational database + using HHCode management systems +SDTS Spatial Data Transfer Standard +SDW Ami Draw Symbol File +SDX Sample DUMP Exchange File +SEA Self-Extracting compressed Macintosh + file Archive +SEARCH ACDSee saved search ACDSee +SEC compressed file +SEC Diskreet encrypted file Diskreet +SEC Secret key ring file Pretty Good Privacy RSA System +SEC Secured animation file Disney Animation Studio +SED Self extraction directive file IExpress +SEN Scifer Archive Format (Internal + Header Mode) +SEP Printer separator page +SEQ ABI Text Sequence Applied Biosystems +SEQ Atari animation file +SEQ Video Tiertex video sequence +SEQ Sequential Instruction File Bubble Chamber +SES Session info Clarion Modula-2 +SES Multitrack Audio Session info Adobe Audition +SET Configuration file 1st Reader +SET Driver sets created by Install Symphony +SET Extension used by Norton Backup and Norton Backup - CPS Backup + CPS Backup for setup info +SET Hump Assignments File FYM +SET Setup options file +SET YVD card set file YVD +SF IRCAM Sound File CSound package - MixView sound + sample editor +SF JAR Digital Signature +SF WPS attribute storage (OS/2 OS/2 WorkPlace Shell + WorkPlace Shell) wp_root.sf +SF2 Emu SoundFont Bank v2.0 file AWAVE, Viena, Polyphone, Swami +SFB Configuration file emacs +SFB HP Soft font (obsolete under + Windows) +SFD SoundStage Data file AWAVE +SFF Standard Flowgram Format DNA Baser SFF Workbench tool +SFF Scene File Format +SFI Graphics SIS Framegrabber +SFI Printer font (HP LaserJet landscape) Ventura Publisher +SFL PCL 4 bitmap font (landscape) landscape - Intellifont - + Ventura Publisher +SFL Sound file Sound Forge and ACID Pro +SFN Font SPX +SFO Bitstream font file - fontware + format +SFP PCL 4 bitmap font portrait - Intellifont - + Ventura Publisher +SFR Sonic Foundry Sample Resource AWAVE +SFS PCL 5 scalable font file Intellifont +SFT Screen font ChiWriter +SFV Simple file verification checksum many file verification tools + file +SFX Renamed dBASE III screen mask file dBASE IV +SFX SFX (self-extracting archives) RAR + script +SG1 Graphics Stanford Graphics +SGF Document with graphics Starwriter +SGF Smart Game Format Many board games +SGI Graphics file IRIS - Silicon Graphics +SGP Statistics STATGRAPHICS Plus +SGT Save/get keyboard macro Signature +SH ASCII archive SHAR +SH Unix shell script Unix shell interpreter +SH3 Presentation Harvard Graphics 3.0 +SH3D Sweet home 3d file Sweet home 3d, archivers with + ZIP support +SHA1 SHA1 Checksum verification File HashCheck (Windows) +SHAR Shell self-extracting archive UNSHAR (Unix) +SHB Background CorelShow + Microsoft's shed.exe, JGsoft's +SHG Segmented Hyper Graphics Hotspot Builder, EC Software's + Help and Manual +SHK Apple II archive SHRINKIT +SHM Shell macro WordPerfect Library + Shape file and sdiv id="PYI"> AutoCAD + PYIource file for text fonts +SHP ArcGIS + ESRI shapefile + +SHR see SHAR +SHS Shell Scrap Object File Windows XP and earlier versions +SHT HTML format for WWW NetScape +SHW Presentation Harvard Graphics 2.0 - + CorelShow +SHW Slide show WordPerfect Presentations, + PMview Slide Show + Shape entities AutoCAD +SHX + ESRI shapefile ArcGIS + +SIB Sibelius file Sibelius 1-5 +SID Sound Interface Device file format SIDplayer, SIDplay, sidplay2 /w +SIF Setup Installation Files info Windows NT Setup +SIG Current program settings Signature +SIG Signature file gpg, PopMail, ThunderByte + AntiVirus +SIK Backup file (Sicherungskopie) Microsoft Word +SIM Simon document file - Simon + instruction software editor +SIS symbian file +SIT Archive (Macintosh) STUFFIT +SK Skin file +SKI Skin file ? +SKIN Skin file +SKN Skin file +SKP Google SketchUp file +SKY SYLK Spreadsheet file (used by + Multiplan) +SL S-Lang source code file +SLB P-CAD library (symbols) P-CAD +SLB Slide library AutoCAD +SLC SALT (script from Telix) compiled Telix + code +SLD Slide AutoCAD +SLDPRT Part SolidWorks +SLDASM Assembly SolidWorks +SLDDRW Drawing SolidWorks +SLI Slide MAGICorp Slide Service +SLK Microsoft Excel import format Microsoft Excel +SLK SYLK Symbolic Link format data file MultiPlan +SLL Sound data file +SLL Static Link Library PowerBASIC +SLN Microsoft Visual Studio Solution Microsoft Visual Studio +SLP SLP command file created by SRCCOM RT-11 +SLP Localization project file Sisulizer +SLP Age of Empires graphics file Age of Empires (video game) +SLS Slim source code Slim (programming language) +SLT SALT Script Application Language for Telix + Telix script source +SLV Solution for any game many +SM Maillist SoftSpoken Mailer +SM Script ScriptMaker +SM SMALLTALK source code file +SM Text file Samna Word +SM StepMania Step File StepMania +SMC Super MagiCom SNES ROM image Super MagiCom +SMCLVL Secret Maryo Chronicles Level Secret Maryo Chronicles +SMF Fax SMARTFAX +SMF 3D World Studio mesh files +SMK Smacker video Format (RAD Video) +SML System Macro Library RT-11 +SMM Ami Pro Macro File Ami Pro +SMN Font (ParaGraph's WorkScript format) +SMP Sample (sound file) +SMP Samplevision File Samplevision +SMPL Data Megahedron 3D object +SMS MSTS Sound management system file MSTS +SMT Text file Smart Ware II +SN Compressed song file Sound Club editor +SND Digitized sound file Macintosh/ATARI/PC +SND Power Chords drum sound file Power Chord +SNDB SQLNotes database SQLNotes +SNG Song (midi sound) Midisoft Studio - Prism +SNG Saved game file for StarCraft StarCraft +SNO SNOBOL4 source code file +SNP Book-shelf for .BOO READIBM +SNP Microsoft Access report snapshot +SNP Output video format from Computer + Eyes equipment +SNX Saved game file for StarCraft: Brood StarCraft: Brood War + War +SO shared object, dynamically linked Unix, Linux + library +SOAR Soar Production file +SOF Altera FPGA programming file Altera Quartus + (internal RAM) +SOL Solution e.g. game walkthroughs + Adobe Flash shared object ("Flash +SOL cookie") (Movie, film, video and Adobe Flash + multimedia file type) +SOL Solidity source code +SOM Network serial numbers Quattro Pro +SOM Sort information Paradox +SON Song SBStudio II +SOU Temporary BATCH file RT-11 +SOU SBStudio II Sound File SBStudio II +SOU Sound data (sound tool) +SP Archive (unix) SPLINT +SPC Program Microsoft Multiplan +SPC Temporary file WordPerfect for Win +SPC SNES SPC-700 Sound File SNES games +SPC Spectroscopic data (scientific) Thermo Scientific +SPD Scalable font Speedo - Harvard Graphics 3.0 +SPF Slide presentation file EnerGraphics +SPF data SQR Portable Format +SPG Glossary Sprint +SPI Graphics (Siemens and Philips + scanner) +SPIFF Still Picture Interchange File + Format +SPIN Spin source file Parallax Propeller + Microcontrollers +SPL Archive SPLINT +SPL Customized printer driver Sprint +SPL Divided file segment Slice +SPL Personal spell dictionary Signature +SPL Print spooling file Windows 3.x +SPL Sample +SPM Data wp{wp}.spm WordPerfect +SPP Printer file Sprint +SPR Document letter Sprint +SPR Generated executable screen file FoxPro +SPR Sprite +SPR Story Board sprites +SPS Exported SyncBack profile SyncBack +SPS Screen driver Sprint +SPS SPSSx source code file VAX/VMS +SPT Data support file (MITAC disk/system MITAC disk/system management + management utility pack) utility pack +SPT SPITBOL source code file +SPW Worksheet SigmaPlot +SPX Compiled executable screen file FoxPro +SPX Ogg Speex bitstream^[1] Xiph.Org Foundation +SQD Squish message base Squish +SQI Squish message base index Squish +SQL Squish message base lastread Squish + pointers +SQL Structured Query Language Any SQL database +SQLite SQLite Firefox SQLiteBrowser +SQM Windows Live Messenger log file +SQN Note file SquareNote +SQZ Archive SQUEEZE +SQZ FOXPRO Squeeze file FOXPRO +SRC Source code Aurora Compiler +SRC Multi-edit source Multi-Edit +SRC Source DataFlex +SRF Sun Raster File graphics file +SRP Script QuickLink +SRT Subtitle format SubRip +SS Bitmap graphics Splash +SS Screen saver DN +SSC Celestia Solar System Catalog file Celestia +SSC Stellarium Script Stellarium +SSD Datafile SAS/PC +SSF Graphic file SnagIt Studio File/PC +SSFREC Super Smash Flash 2 replay file File for Super Smash Flash 2 +SSG Saved game Simsig + Media playback devices / +SSIF Stereoscopic Interleaved file software that supports Blu-ray + 3D +SSO SmartSong SertintyONE +SSP Datafile SAS Transport +SSR FLEXIT Singleshot Survey Raw Data FLEXIT + file +SST AVHRR graphic file +SSV Spreadsheet viewer file +ST Instrument library Scream Tracker +ST SMALLTALK source code file Little Smalltalk +ST Stamp NeoPaint +STA Data file Statistica +STA Saved state Reflection 4.0 +STA Stack Spinmaker Plus +STB Symbol table file RT-11 +STB Stub library Genus GX Kernel +STC Celestia Star Catalog file Celestia +STC OpenOffice.org XML spreadsheet OpenOffice.org Calc + template +STD State Transition Diagram graphic Prosa + file +STD OpenOffice.org XML drawing template OpenOffice.org Draw +STEAMSTART STEAMSTART file Steam (software) +STEP Standard for the Exchange of Product universal format for CAD + Data exchange +STF Archive SHRINKTOFIT +STF Setup Table File +STI OpenOffice.org XML presentation OpenOffice.org Impress + template +STK eBook Starebook +STL Stereolithography Interface Format +STL Subtitle files EBU-standard +STM Music format (4 channels) (Scream ST - DMP + Tracker Module) +STM State Transition Diagram model file Prosa +STO Pascal stub OBJ file Genus GX Kernel +STP Subtitler Project Belle Nuit Subtitler +STP Standard for the Exchange of Product universal format for CAD + Data exchange +STR Gate3 table structure file +STR Structure list object file dBASE Application Generator +STR PlayStation video file +STRINGS Strings file Apple +STS Music format (Scream Tracker Song) ST 2.0-2.3 +STS Project status info Microsoft C/C++ +STU Studio Project Pinnacle Studio (video editing + software) +STUFF EVE Online compressed file archive CCP hf +STW Data file SmartTerm for Windows +STW OpenOffice.org XML text document OpenOffice.org Writer + template +STX Electronic book SmarText +STX Music format +STX Tax form CA-Simply Tax +STY Ami Pro Template (Style); used by Ami Pro + other programs for `styles` +STY Style library or sheet many +SU Saurus source file +SU? Packed mail FTN software +SUB Subtitle format SubViewer; Author David + Dolinski +SUC Saurus byte-code file Saurus VM +SUF Sony camera configuration file XDCAM-EX camcorders + (setup.suf) +SUI SUIT library Simple User Interface Toolkit +SUM Summary +SUN Sun rasterfile graphics file Sun Microsystems +SUO Solution User Options Microsoft Visual Studio +SUP Subtitle file (Blu-ray encapsulated SupRip + container) +SUP Supplementary dictionary WordPerfect for Win +SUR Surface topography (in native "SURF" MountainsMap + format) +SV4 Saved Game File RollerCoaster Tycoon +SV6 Saved Game File RollerCoaster Tycoon 2 + Represents the ServiceHost instance Windows Communication +SVC hosted by Internet Information Foundation + Services +SVD Autosave file for document Microsoft Word +SVG Autosave file for glossary Microsoft Word +SVG Scalable Vector Graphics many +SVQ MRC-Pro sequencers music format Roland Corporation synths such + as XP or Fantom series +SVS Autosave file for style sheet Microsoft Word +SVW Super Video Windows Conversion Artist +SVX Interchange, 8SVX/16SV AWAVE +SVY FLEXIT Survey data FLEXIT +SW Raw Signed Word (16bit) data AWAVE +SWF Shockwave Flash Macromedia +SWG SWIG source code SWIG +SWG SWAG Pascal Snippets file SWAG +SWIFT Swift source code Swift (programming language) +SWP Document backup Sprint +SWP Swap file +SWT Hump Routes File FYM +SXC OpenOffice.org XML spreadsheet OpenOffice.org Calc +SXD OpenOffice.org XML drawing OpenOffice.org Draw +SXG OpenOffice.org XML master document +SXI OpenOffice.org XML presentation OpenOffice.org Impress +SXM OpenOffice.org XML formula OpenOffice.org Calc +SXP 3DS Process file 3D Studio +SXW OpenOffice.org XML text document OpenOffice.org Writer +SY1 SmartPix symbol library Ami Pro +SY3 Harvard Graphics format +SY3 Symbol file Harvard Graphics 3.0 +SYD Backup of startup files created by + QEMM (?) autoexec.syd +SYD Sysedit backup file Sysedit +SYG Monitor and handler files created by RT-11 + SYSGEN +SYM Compiler symbolic information file +SYM P-CAD component (symbols) P-CAD +SYM Precompiled headers Borland C++ +SYM Program symbol table Power C, Microsoft ILink + incremental linker +SYM Symbol file Harvard Graphics 2.0, Microsoft + Windows SDK +SYN SDSC Synu image file SDSC Image Tool +SYN Synonym file Microsoft Word 5 +SYS Datafile SYGRAPH - SYSTAT - SPSS/PC +SYS System file - device driver or DOS + hardware configuration info +SYW Graphics file (symbol) Harvard Graphics Win +SYW Yamaha SY-85/SY-99 Wave File Convert (c) Villena +SZPROJ SZInstallSystem Project SoftwareZator 2011 Standart + Edition + +T Archive without tar + compression (tape) +T TADS source +T Tester symbol table ReaGeniX code generator +T?H Turbo Help file (Pascal, Borland Thelp + C, Assembler, ...) +T$M AVG scan log files^[2] AVG +T2B Bookeen Cybook thumbnail Cybook +t2flow Taverna 2 workflow Taverna workbench + definition +T2L True2Life file format 3D Internet content developers +T44 Temporary file for Sort or dBASE IV + Index +T64 Program C64S emulator +TAG Query tag name DataFlex +TAH Help file for Turbo Borland C++ + Assembler +TAK Audio codec, Lossless Winamp (+Plugin), foobar2000 (+Plugin), + audio file format Media Player Classic - BE +TAL Adobe Type Align Adobe +TAL Text illustration TypeAlign +TAP Tape file ZX Spectrum emulator by g.a.lunter +TAR Archive TAR +TAZ Archive WinZipNT - TAR - COMPRESS +TB Tab file (Virtual Desktop Tabbery + Tab) +TB1 Font file Borland Turbo C +TB2 Font file Borland Turbo C +TBF Fax Imavox TurboFax +TBK FOXPRO template backup FOXPRO + file +TBK Memo backup dBASE IV - FoxPro +TBK Toolbook Asymetrix ToolBook +TBL Short for Table used by many programs +TBL Aldus TableEditor file TableEditor +TBL binary Unicode conversion Volkov Commander, DOSLFN + table +TBL Gate3 table file +TBL Graphics file (native PageMaker TableEditor + format) +TBL Table of values OS/2 +TBR Norton Desktop custom NDW + toolbar +TBS Text elements ?? Microsoft Word + (Textbausteine) +TBX Table Project Scheduler 4 - TermBase eXchange + (ISO 30042) +TBZ Archive WinZipNT - TAR - Bzip2 +TC Configuration Turbo C - Borland C++ +TCC TI-Nspire OS upgrade file TI-Nspire CX CAS +TCH Help file Turbo C - Borland C++ +TCL Tool Command Language Tcl + source code +TCO TI-Nspire OS upgrade file TI-Nspire CX +TCT Drawing Template TurboCAD for Windows +TCW Native Drawing File TurboCAD for Windows +TD Config from Turbo Debugger Turbo Debugger +TD0 Compressed disk image file Teledisk +TD1 Multi-part disk image file Teledisk +TD2 Configuration file Turbo Debugger for Win32 +TDB Database TACT +TDDD Imagine Object File Format Imagine +TDF Speedo font file +TDF Typeface definition file Speedo +TDH Help file for Turbo Borland C++ + Debugger +TDK Keystroke recording file Turbo Debugger +TDR Contens of Arvid tape +TDS Symbol table Turbo Debugger +TDT Thumbnail data AVCHD +TDW Configuration file Turbo Debugger for Windows +TEC Data TECPLOT output +TEC TECO macro file TECO + ("compiled" form) +TEF Fax Relisys TEFAX +TEL Host file Telnet +TEM Input template IconAuthor +TEM Turbo Editor Macro Borland C++ + Language script +TERM Terminal File +TES TECO macro file (source TECO + form) +TET Tetris results DN +TEX Datasheet Idealist +TEX TeX text file Scientific Word - TeX +TEX Image Slimtex +TEXT Text file +TF Configuration Turbo Profiler +TFA Area file Turbo Profiler +TFC Catalogue file Tobi's Floppy Cataloguer +TFF self executing TansForm TansForm + dialogue +TFH Help file for Turbo Borland C++ + Profiler +TFM Tagged font metric file Intellifont +TFM TeX font metric file TeX +TFS Statistical information Turbo Profiler +TG1 Project file On Target +TGA Targa bitmap Paint.NET, many raster graphics editors +TGZ Archive WinZipNT - TAR - GNUzip +TH? Packed mail FTN software +THE Windows'95 Desktop Theme Microsoft Plus +THEME Windows Theme Microsoft Windows 95 with Plus!, 98 and + later +THEMEPACK Windows Theme package Microsoft Windows 7 and later, many file + archivers with CAB support + Picture Publisher, PhotoMagic, Canon + Digital Cameras, and Sony Digital Cameras +THM Thumbnail or Theme File create these Thumbnail files; also used + for Sony Ericsson Theme File, for a cell + phone +THP Nintendo proprietary video Various Nintendo games + format +THR ThredWorks Embroidery Thred, Embroidermodder + Format +THS Thesaurus dictionary WordPerfect for Win +TIB Acronis True Image Backup Acronis True Image + FTN special file with +TIC assotiated file ALLFIX + description +TIF see TIFF +TIFF TIFF (tagged image format Alchemy - PhotoStyler -PageMaker - + file) bitmapped file CorelDRAW +TIGER Tomb Raider binaries files Ubi +TIL Fuzzy logic knowledge base Togai InfraLogic Fuzzy-C Compiler +TIP Digital Signage Tru-Designer, Tru-Player, Tru-Scheduler + Presentation part of Tru-i Suite^[3] +TIS Tile set MahJongg 3.0 +TJL Backup file VAXTPU editor +TLB Reference table Bubble Chamber +TLB Text library VAX + A binary file with information about a COM + or DCOM object so other applications can +TLB Type library [1] use it at runtime. Created by Visual C++ + or Visual Studio. Used by many Windows + applications. +TLC Compiled Tool Command Swat + Language source code +TLD Disk Image Teledisk +TLG Transaction Log Intuit QuickBooks +TLH Typelib Generated C/C++ Visual C++ + Header +TLP Project TimeLine +TLX Website builder Trellix +TM2 Typical Meteorological Typical Meteorological Year + Year data (new) +TMC TI-Nspire OS upgrade file TI-Nspire CM-C CAS +TMF Tagged Font Metric file WordPerfect for Win +TMF TiVo movie TiVo +TMO ZTG global optimizer Zortech C++ + default output file +TMO HandsHigh ThoughtManager ThoughtManager Desktop + Outline +TMO TI-Nspire OS upgrade file TI-Nspire CM-C +TMP Temporary file (Several programs) +TMPL Template +TMS TeleMate compiled script TeleMate +TMY Typical Meteorological Typical Meteorological Year + Year data (old) +TMY2 Typical Meteorological Typical Meteorological Year + Year data (new) +TNC TI-Nspire OS upgrade file TI-Nspire CAS +TNO TI-Nspire OS upgrade file TI-Nspire +TNS TI-Nspire document TI-Nspire series +TOC Table Of Contents text + file (ASCII) +TOCG TorgaNET Diplomatic Cables State Department of Torga +TOK Borland C++ 4.x reserved BCW.EXE + word list +TOG TorgaNET TorgaNET database file + TopicCrunch SEO Project +TOPC file holding keywords, + domain and search engine + settings (ASCII) +TORRENT TORRENT File BitTorrent clients (various) +TOS Character file The Only Sheet +TOS Self-extracting file + archive (Atari ST) +TP Session-state file Turbo Profiler +TP Turbo Pascal cfg file Turbo Pascal + TinkerPlots and Fathom Dynamic Data +TP TinkerPlots Document Software; documents contain data tables, + graphs, text, pictures, etc. +TP3 Template Harvard Graphics 3.0 +TPB Downloadable PCL Soft font HiJaak + file backup + File produced when an +TPC inter-Topicscape topic 3D Topicscape + link file is exported to + Windows +TPF Downloadable PCL Soft font HiJaak + file +TPF Print data in EMF format ThinPrint +TPH Help file Turbo Pascal +TPL Resident units library Turbo Pascal +TPL Template file GoldEd -ITrack +TPL Template Harvard Graphics 2.0 +TPOLY Data TPOLY 3D object +TPP Protected Mode Units Borland Pascal 7.0 +TPT Digital Signage Tru-Designer, Tru-Scheduler part of Tru-i + Presentation Template Suite^[3] +TPU Borland Pascal DOS Mode Borland Pascal + Library +TPU Command file (VAXTPU VAXTPU editor + editor) +TPW Borland Pascal Windows Borland Pascal + Library +TPW Session-state file Turbo Profiler for Windows +TPZ Archive TAR - GNUzip +TR Man page input suitable cawf2.zip + for troff -man +TR Session-state settings Turbo Debugger for DOS +TR2 Session-state settings Turbo Debugger for Win32 +TRC Debug support file Power CTrace +TRASH File found during a file Windows + scan as bugged +TRE Directory tree file PC-Tools +TRD Datafile TrID file identifier filetypes definitions + package +TRIA Data Greg Hood's ASCII Triangle +TRIB Data Greg Hood's Binary Triangle +TRIF Tiled Raster Interchange + Format + Track (i.e. video +TRK sequence), used by many + games +TRM Terminal settings Windows 3.x +TRN Translation support file Quattro - Clarion +TRP MPEG-2 Part 1 multiplexed Digital video broadcast, DVRs, video + video stream players +TRS Executable file Micrografx or password file +TRS WiSo Mein Geld 2007 +TRS IBM Mainframe log file TRSMAIN +TRU True Basic source file +TRW Session-state settings Turbo Debugger for Windows +TRY Typical Meteorological TRNSYS + Year data (variant) +TS MPEG transport stream Various media players / software +TS Qt Linguist TS File Trolltech Qt Linguist +TS TypeScript source file +TSE Data Light Map Maker ASCII Scene +TSK Microsoft Multimedia Task Win95 + Application +TSL Exported Schedule Tru-Scheduler part of Tru-i Suite +TSM Turbo Assembler Manual TASM for OS/2 +TST Printer test file WordPerfect for Win +TST ExamView papers and online can be opened with WinRAR, ExamView, and + tests TestGen software.^[4] +TSV Tab Separated Values +TTE TrueType Font file Windows EUDC editor +TTF TrueType Font file +TU? Packed mail FTN software +TUD The Ultimate Draw file The Ultimate Draw +TUT Tutorial +TV Table view settings Paradox +TVF Table view settings dBASE +TVn Overflow file above insert WordPerfect for Win + point in Doc n +TWF Warp Map File Geo Semiconductor, Inc eWarp Pro + Development Took Kit +TXC Test Configuration Format +TXF Tax eXchange Format +TXI Support file TeX +TXT Common name for ASCII text Microsoft Notepad + file +TXT Tab-Delimited Text File Microsoft Excel +TXT Document Extension TextEdit +TXW Yamaha TX-16W Wave File Convert (c) Villena +TY TiVo movie TiVo +TYM Time Stamp (PageMaker 4) PageMaker 4 +TZ Archive TAR - COMPRESS +TZB Archive TAR - COMPRESS - BTOA +TZL Tanzzle pattern file Tanzzle +TZX Tanzzle image file Tanzzle + +U3D Model file format Ultimate 3D +U3D Universal 3D Adobe Acrobat +U8 Sample +UB Raw Unsigned Byte (8bit) data AWAVE +UC2 Archive UC II +UCN New archive UC II +UCS Unknownsoft Service Pack (mainly Unknownsoft Computer Systems + for Shadow OS 2009) +UDF Filter Aldus Photostyler +UDO Data Moray User Defined Object +UDIWWW bookmark data UdiWWW +UDW Raw Unsigned DWord data AWAVE +UE2 Encrypted archive UC II +UFI data UFO CaptureV2 settings - +UFO graphic file Ulead Photo Impact +UHA UHarc archive +UHS Universal Hint System (binary + file) +UI Espire source code file Geoworks UI Compiler Geos +UI Qt Designer's UI File Trolltech Qt Designer +UI User interface Sprint +UIF Long prompts for windows WordPerfect for Win +UIH Espire header file Geoworks UI Compiler Geos +UL ULAW audio file +ULD Information about uploaded files Procomm Plus - Datastorm Technologies, + Inc. +ULF data MRF Mapping Tool Kit Universal List + Format +ULT Music UltraTracker +UMB Backup file MemMaker +UMP Umple UML Programming Language Umple + Format +UMX Unreal Music Package Unreal Tournament +UNF Universal NES Image Interchange + File Format +UNI Datafile Forecast Pro +UNI Music format UNIMOD - MIKMOD +UNIF Universal NES Image Interchange + File Format + Text file containing finite Originally used by SDRC for its I-deas +UNV elements nodal coordinates and software; a lot of simulation software + more See notes use it today +UNX Text file containing UNIX + specific info + UniqueObject Markup Language +UOML (UOML) is a XML-based markup + language +UOP Uniform Office Format + presentation +UOS Uniform Office Format + spreadsheet +UOT Uniform Office Format text +UPD Update data dBASE +UPO Compiled update data dBASE +URL Internet Shortcut (URL) Windows Explorer +URT Utah Raster Toolkit +USDZ Augmented Reality (AR) File Apple, Pixar +USE Log file +USP Printer font with USASCII Adobe PageMaker + extended character set +USR User database file Procomm Plus - Turbo C++ tour +UST UTAU vocal track UTAU +UT! datafile uTorrent +UTZ Mobile Phone Theme Sony Ericsson +UU Encoded file (ASCII) UUENCODE/UUDECODE - Uuencoding +UUE Encoded file (ASCII) UUENCODE/UUDECODE - Uuencoding +UW Raw Unsigned Word 16bit data AWAVE +UWF UltraTracker WaveSample UltraTracker +UXP SmartData Object SertintyONE +UZED Compressed Unicode GEDCOM file Family Tree Builder + +V Consistency check support file ReaGeniX code generator +V Main input file for an image Vivid 2.0 +V Coq source file +V Verilog source file +V1, V2, ... Split parts of a whole file JJSplit +V4P vvvv patch vvvv +V64 Nintendo 64 ROM Nintendo 64 emulators +V8 Covox 8bit file AWAVE +V10 Data Gouraud Shaded Vectors + Voucher management included in +V2D Voucher design file JFire (e.g. when printing a + voucher) +VAI multimedia PhotoDub document +VAL Validity checks and Paradox for Windows + referential integrity +VAL Values list object file dBASE Application Generator +VALA Sourcecode Vala +VAN Animation VistaPro +VAP Value Added Process NetWare 2.xx +VAP Dialogic indexed adpcm voice VBASE/40 + file +VAR Variable file IconAuthor +VB Visual Basic .Net source file Visual Basic .NET +VBOX virtual machine settings file VirtualBox + (in XML format)^[5] +VBOX-EXTPACK VirtualBox extension package^ VirtualBox + [6] +VBOX-PREV backup of virtual machine VirtualBox + settings file +VBPROJ Visual Basic .Net project file Visual Basic .Net Express and + Visual Studio 2003-2010 Project +VBR Visual Basic Custom Control Visual Basic + file +VBS VBScript script file VBScript +VBX Visual Basic eXtension Visual Basic +VBZ Visual Basic Setup Wizard Setup Wizard + Template +VC6 Graphite - 2D and 3D drafting Ashlar-Vellum +VC Include file with color Vivid 2.0 + definitions +VC Spreadsheet VisiCalc +VCA Visual Clip Art +VCD VideoCD +VCD VirtualDrive CD Image File +VCD Value Change Dump (Verilog) + temporal database file +VCD VisualCADD Drawing File +VCE Visual CertExam File VCE Exam Simulator +VCF Virtual Contact File +VCLS VocaListener voice scanner VocaListener Plug-in (Vocaloid3) + file +VCR VCR drivers for Arvid +VCW Visual workbench information Microsoft Visual C++ +VCX Spreatsheet VisiCalc Advanced +VDA Targa bitmap graphics many raster graphics editors +VDI Virtual Disk Image VirtualBox +VDO Story Board video image Story Board +VDOC Vector Document File a Future Corporation Pty. Ltd. + (Australia) +VDR Drawing ComputerEasy Draw +VEG Vegas Project Sony Vegas +VEW GroupWise for Windows Win +VEW View file Clipper 5 - Lotus Approach +VF0 Database file OTExpert 5 +VFA FontLab Database file FontLab +VFD Virtual Floppy Disk Windows Virtual PC (among others) +VFM Ventura Font Metrics file +VFM Voting Form Voter +VFN Voting Form for Customers Voter +VGA VGA display driver +VGA VGA display font +VGD VGA display driver Generic CADD +VGM Video Game Music audio format +VGR Graphics file Ventura Publisher +VHD VHDL source file +VHD Virtual Hard Disk Windows Virtual PC (among others) +VHDX Virtual Hard Disk v2 Microsoft Hyper-V (among others) +VI LabVIEW Virtual Instrument LabVIEW +VI Graphics file Jovian Logic VI +VI Watcom editor script VI.EXE +VIA VIA Document Project VIA Text Editor +VIC see VICAR +VICAR Graphics (Video Image + Communication and Retrieval) +VID Bitmap graphics (YUV12C + M-Motion Frame Buffer) +VID Graphics format Word&Deed +VID MS-DOS Shell Monitor file MS-DOS 5 +VID Screen device driver Word +VIF see VIFF +VIFF Khoros Visualization Image SDSC Image Tool + File Format +VIK Graphics format (VIKING) +VIM Vim script file Vim text editor +VINF data ReMPEG log file - frames info +VIR Virus or infected file +VIS VIS graphics file +VLM Vellum, Vellum 2D, Vellum Ashlar-Vellum + Draft, Vellum 3D, DrawingBoard +VLM Virtual Loadable Module Netware +VLOGO Vector Logo File a Future Corporation Pty. Ltd. + (Australia) +VM Virtual Memory file Geoworks +VMC Virtual memory configuration DOS/4GW PM 32X DOS Extender +VMCZ Hyper-V Exported Virtual Microsoft + Machine +VMDK Virtual Disk file VMware +VMF Font characteristics Ventura Publisher +VMG Nokia message file format Text Message Editor (Nokia PC Suite + ) +VMS Text file containing VMS + specific info +VMT Source Engine resource file Source Engine +VO Include file with object Vivid 2.0 + definition +VOB Video Object DVD-R, DVD-RW +VOC Sound format (Creative Lab's PlayVoc + Sound File) +VOF Object folder VZ Programmer +VOP Visual Orangator Project +VOP Visual OTTHYMO Project +VOX Dialogic adpcm file AWAVE, CoolEdit +VP 3DS Video posting 3D Studio +VPF Vector Product Format +VPG Graphics file VPGraphics +VPH Virtual Pascal Help VP/OS2 +VPI Virtual Pascal Unit VP/OS2 +VPM Garmin Voice Processing Module +VPP Visual Paradigm Project Visual Paradigm for UML +VQA Vector Quantized Animation The Legend of Kyrandia +VQM Hardware description language Altera +VRM Overlay file QuattroPro +VRM Visual rexx source WATCOM VREXX +VRML Virtual Reality Modeling NetScape + Language +VRP Project WATCOM VX?Rexx +VRS Video Resource e.g. video WordPerfect + device driver +VS Vellum Solids Ashlar-Vellum +VS Include file with surface Vivid 2.0 + definition +VSD Diagram Shapeware Visio +VSD Visio drawing Visio +VSDM Visio macro-enabled drawing Visio +VSDX Visio drawing Visio +VSM Visual Simulation Model VisSim +VSP Sprite SPX +VSQ Vocal synthesizer track data Vocaloid2, Vocaloid3 +VSQX Vocal synthesizer track data Vocaloid3 +VSS SmartShapes file Shapeware Visio +VSS Visio Stencil Visio +VSSM Visio Macro-enabled Stencil Visio +VSSX Visio Stencil Visio +VSSX Visio Stencil Visio +VST Truevision Vista graphics many raster graphics editors +VST Visio Template Visio +VSTM Visio Macro-enabled Template Visio +VSTO Microsoft Office add-in file Microsoft Visual Studio +VSTX Visio Template Visio +VSVNBAK VisualSVN Server repository VisualSVN Server + backup +VTF Source Engine resource file Source Engine +VUE Animation 3D Studio +VUE View dBASE IV - FoxPro +VVV Video game save VVVVVV +VW Text file VolksWriter +VWR File viewer file PC Tools +VWX CAD File VectorWorks 2008 +VXD Windows 3.x virtual device Windows 3.x + driver +VZT Temporal database file GTKWave data file + +W Word chart file APPLAUSE +W01 Yamaha SY-series wave files AWAVE +W01 Yamaha TX16W wave file AWAVE +W30 Printer font AST TurboLaser - + Ventura Publisher +W31 Startup file Windows 3.1 +W3A Warcraft III Abilities Export File Contained in a + Warcraft III map +W3B Warcraft III Destructables Export File Contained in a + Warcraft III map +W3D Warcraft III Doodads Export File Contained in a + Warcraft III map +W3D Westwood 3D object format 3D models used in + Renegade and Generals +W3D Shockwave 3D object format +W3G Warcraft III Replay File File for Warcraft III +W3H Warcraft III Buffs Export File Contained in a + Warcraft III map +W3M Warcraft III Map File for Warcraft + III: Reign of Chaos + File for Warcraft +W3N Warcraft III Campaign III: The Frozen + Throne +W3O Warcraft III Object Data Export File Contained in a + Warcraft III map +W3P Warcraft III Save Save File for + Warcraft III +W3Q Warcraft III Upgrades Export File Contained in a + Warcraft III map +W3T Warcraft III Item Export File Contained in a + Warcraft III map +W3U Warcraft III Unit Export File Contained in a + Warcraft III map +W3V Warcraft III Save Save File for + Warcraft III + File for Warcraft +W3X Warcraft III Expansion Map III: The Frozen + Throne +W3Z Warcraft III Save Save File for + Warcraft III + renamed system files (AUTOEXEC.BAT, COMMAND.COM Windows 95, 98, ME +W40 , CONFIG.SYS,DBLSPACE.BIN.DRVSPACE.BIN, (dual-boot feature) + MSDOS.SYS) of Windows version +W44 Temporary file for Sort or Index dBASE +W95 Something for Windows95 Win95 +WAD Where's All the Data? Doom - Doom2 +WAD Nintendo proprietary format for Wii channels, Nintendo Wii + menus, etc. +WAG Yard Contents File FYM +WAI Warcraft III AI Data File Warcraft III AI Data + File + A Java file format +WAR Java Web Archive used to package and + deploy web + applications +WAS ProComm Script File (source code) ProComm +WAV Sound format (Microsoft Windows RIFF WAVE) Media Player +WAX TVTonic WAX video packaging Wavexpress TVTonic +WAX ProComm compiled script ProComm + Windows Media Player +WAX Windows Media Audio Shortcut (Windows Media Audio + Redirector)^[7] +WB1 Notebook Quattro Pro +WB2 Spreadsheet Quattro Pro +WBF Microsoft Windows Batch File Catch +WBK Document/workbook or Microsoft Word backup file WordPerfect for Win + or Microsoft Word +WBT Norton Desktop Norton Desktop +WBT Wilsonware Batch file Winbatch +WCD Condes Event Data file Condes +WCD Macro token list WordPerfect for Win +WCH WordPerfect Macro Facility WP +WCM Data transmission file Microsoft Works +WCM Macro WordPerfect for Win +WCP Product information description WordPerfect for Win +WD InfoSelect Data file +WDB Database Microsoft Works +WDB World Database Lego Island +WDM Admin tool connection definition War FTP +WE? Packed mail FTN software +WEB WEB source code file Web Easy Professional +WEBLOC Web internet location macOS +WebOOGL Web Object Oriented Graphics Library +WFB Turtle Beach WaveFront Bank AWAVE +WFD Turtle Beach WaveFront Drum AWAVE +WFM Form object dBASE Form Designer +WFN Font CorelDRAW +WFP Turtle Beach WaveFront Prog. AWAVE +WFT Web Family Tree GRAMPS +WFX Data file Winfax +WG1 Worksheet Lotus 1-2-3/G +WG2 Worksheet Lotus 1-2-3 for OS/2 +WID Width table Ventura Publisher +WIFI Torga OS Wifi Settings Database 14th Information + Division (Torga) +WIKI Wiki markup (various flavors) Wikis +WIM Windows Imaging Format ImageX +WIN Window file FoxPro - dBASE +WIREFRAME Data EMSE mesh +WIX Windows Installer XML WiX +WIZ Page wizard Microsoft Publisher + Lotus 1-2-3 version +WK1 Spreadsheet 2.x - Lotus Symphony + 1.1+ +WK3 Spreadsheet Lotus 1-2-3 version + 3.x +WK4 Spreadsheet Lotus 1-2-3 version + 3.4 +WKB Document WordPerfect for Win +WKE Spreadsheet Lotus 1-2-3 + educational version +WKF VISI Working file Vero Software +WKI Spreadsheet format Lotus 123 2x +WKQ Spreadsheet Quattro + Lotus 1-2-3 version +WKS Spreadsheet 1A - Lotus Symphony + 1.0, Microsoft Works +WKS Workspace Xlisp +WKZ Spreadsheet format Dos Navigator +WLK Graphics Virtus Walkthrough +WLK Walk Through for any game many +WMA Windows Media Audio audio file +WMC Backup of startup files by Windows MathCad MathCad + autoexec.wmc +WMC Macro file WordPerfect for Win +WMC Text file WordMARC +WMDB Windows Media Player database Windows Media Player +WMF Windows MetaFile vector graphics + Blizzard +WMO WoW Map Object Entertainment games + (World of Warcraft/ + Warcraft series) +WMP Graphics (Windows Magic Icon Palette) +WMV Windows Media Video video file +WN Text NeXT WriteNow +WNF Corel Draw Font File CorelDraw +WOA Swap file Windows 3.x +WOC Organization Windows OrgChart +WOFF Web Open Font Format +WOFF2 Web Open Font Format +WORKFLOW Workflow macOS +WOW Music (8 channels) Grave Mod Player +WP Word Perfect Format WP +WP5 Document WordPerfect 5.x +WPD Document WordPerfect 6.0 - + PFS:WindowWorks +WPD Windows printer driver (uninstallable) Windows +WPF Fax WorldPort +WPF Form WordPerfect +WPG WordPerfect Graphics vector graphics DrawPerfect +WPJ Watcom C/C++ IDE project IDE.EXE +WPK Macros WordPerfect for Win +WPL MediaRack Wave Playlist MediaRack +WPL Windows Media Playlist Windows Media Player +WPM Macros WordPerfect +WPS Text document Microsoft Works +WQ! Compressed spreadsheet Quattro Pro +WQ1 Spreadsheet Quattro Pro +WR1 Spreatsheet Lotus Symphony 1.1 - + 1.2 - 2 +WRD Template Charisma +WRI Write editor format Write - WinWord +WRK Spreadsheet Lotus Symphony 1.0 +WRL VRML file +WRP Archive Amiga WARP +WRS Windows Resource e.g. might indicate error if WordPerfect for Win + word cannot open +WS APL Worksheet +WS Text file WordStar 5.0-6.0 +WS2 Text file WordStar 2000 +WS7 RS7 Setting Redshift 7 +WSD Document WordStar +WSF Windows Script File Microsoft Windows + Script Host +WSP Workspace Fortran PowerStation +WSQ Wavelet-packet Scalar Quantization Format +WSRC X-wais source +WST Text file WordStar +WSV Keysight SystemVue Workspace file Keysight SystemVue +WTR Working Timetable rules file Simsig +WT Parameter or data dump file WildTangent or + MongoDB +WTT Working Timetable timings file Simsig +WTF World of Warcraft Data File World of Warcraft +WTF WinTaper Data +WV WavPack +WWB Button bar for document window WordPerfect for Win +WWF WWF Document Format +WWK Keyboard layout WordPerfect for Win +WXH Program/Script File WaxHtml Web + Programming Language +WXP Document EXP for Windows +WZ Wizet game archive file Wizet/Nexon + MapleStory + Department of Defense +WZA Encrypted archive file Encryption Wizard + (Public Edition) + +X Archive X1.EXE +X AVS X image file SDSC Image Tool +X DirectX 3D object +X LEX source code file +X XBasic Source code file Xbasic +X3D x3d and xdart Formats +XA XA audio file used in SimCity 3000 by Maxis, also by + Sony PlayStation + Files created by Xara Photo & Graphic +XAR Xara graphics file Designer (formerly Xara Xtreme and Xara + Studio); early versions used the + extension ART +XBE Xbox Executable Xbox +XBM X11 Bitmap graphics file +XLBL extensible Business Reporting Business Reporting + Language +XCF Gimp image file GNU Image Manipulation Program +XCK Extended crack file (usually + text) +XCL Xtree for Windows Script file Xtree for Win +XDF OS/2 extended disk format image XDFCOPY.EXE +XDM Directory Manipulator for Xenotech Research Labs + 32-bit Protected Mode +XE Xenon - for Associative 3D Ashlar-Vellum + Modeling +XEPH PixInsight Solar System PixInsight + Ephemeris Data File +XEX Xbox 360 Executable File +XFN Printer font Xerox 4045 - Ventura Publisher +XFR Ventura Publisher Bitmap Editor + Font file +XFT 24 pin printer font ChiWriter +XI FastTracker 2 instrument file AWAVE +XIF Xerox Image Format Pagis Pro 2.0 and 3.0 +XISB Extensible Image Serialization PixInsight (see XISF 1.0 Specification) + Format (XISF data blocks file) +XISF Extensible Image Serialization PixInsight (see XISF 1.0 Specification) + Format (monolithic XISF file) +XISH Extensible Image Serialization PixInsight (see XISF 1.0 Specification) + Format (XISF header file) +XOSM PixInsight Project File PixInsight +XLA Add-in macro sheet Microsoft Excel +XLA XLib Archive xlibpas2.zip +XLB Microsoft Excel Toolbar Microsoft Excel +XLC Microsoft Excel Chart Microsoft Excel +XLD Microsoft Excel Dialog Microsoft Excel +XLF Extensible LADAR Format LadarSIM +XLK Microsoft Excel Archive Microsoft Excel +XLL Microsoft Excel Dynamic Link Microsoft Excel + Library +XLM Microsoft Excel Macro File Microsoft Excel +XLR Microsoft Works Microsoft Works +XLS Microsoft Excel Spreadsheet Microsoft Excel +XLSB Microsoft Excel 2007 Binary Microsoft Excel 2007 (see Microsoft + Workbook (BIFF12)(Spreadsheets) Office 2007 file extensions) + Microsoft Excel 2007 Microsoft Excel 2007 (see Microsoft +XLSM Macro-Enabled Workbook Office 2007 file extensions) + (Spreadsheets) +XLSX Office Open XML Workbook Microsoft Excel 2007 (see Microsoft + (Spreadsheets) Office 2007 file extensions) +XLT Microsoft Excel Template Microsoft Excel +XLT Translation table Lotus 1-2-3 - Symphony - Procomm Plus +XLV Microsoft Excel Module Microsoft Excel +XLW Microsoft Excel Workbook Microsoft Excel +XM FastTracker 2 extended module AWAVE, Mod4Win, FastTracker, + ImpulseTracker +XM Music format FastTracker 2 - Cubic Player + Assisted contact lists file +XMC format, based on xml and used Classmates iPhone app + in kindergartens and schools +XMOD Monarch Model Monarch Professional +XMI Compressed eXtended MIdi music +XML eXtensible Markup Language file +XMF eXtensible Music Format +XMPZ XML Miradi Project Zipfile Miradi +XMV video Xbox +XNF Standard Network File form +XNK Microsoft Outlook shortcut to Outlook entities +Xnn Secondary indexes Borland Paradox +XOF RenderMorphics +XP eXtended Pattern FastTracker 2 +XPL X-Plane system file Laminar research +XPM X11 Pixel Map graphics file +XPO Microsoft Dynamics AX Export + file + Open XML Paper Specification / open standard document format initially +XPS OpenXPS created by Microsoft and similar in + concept to Adobe PDF files +XQT Executable file Waffle +XQT Macro sheet SuperCalc +XRM-MS XrML Digital License SuperCalc +XSD XML schema description +XSF data Microsoft InfoPath file +XSF data Microsoft InfoPath file +XSPF XML Sharable Playlist Format +XSL XSL Stylesheet +XSLT XSLT file +XTB External translation table LocoScript +XTP XTreeGold overlay XTreeGold +XVF Xyngo Video File Xyngo Video Board +XWD Xerox DocuWorks file (RTF DocuWorks + internal?) +XWD X Window System window dump SDSC Image Tool + image graphics file +XWK Keyboard mapping Crosstalk +XWP Session Crosstalk +XWP Text file Xerox Writer +XX XX-encoded file (ASCII) XXDECODE +XXE XX-encoded file (ASCII) XXDECODE +XXX Singer Embroidery Format Embroidermodder +XY Text file XY Write +XY3 Text file XYWrite III +XYW Text file XyWrite III +XYZ Molecular coordinates XMol, RasMol + a lossless data compression +XZ file format incorporating the xz + LZMA/LZMA2 compression + algorithms. + +Y Archive (Amiga) Yabba +Y YACC grammar file Yacc/Bison +YAL Data custom/nature.yal Arts & Letters +YAML Yaml source file YAML (data serialization language) +YC Archive YACC (YAC.EXE) +YLIB Yookoo Music Library Backup File Yookoo Media Player +YMP Yast Meta Package YAST2 (SUSE Linux Package Manager) +Ynn Secondary index Borland Paradox +YOOKOO Yookoo Playlist Yookoo Media Player +YRD Yard Tracks File FYM +YST Data YASRT Raytracer scene +YUV Graphics format (YUV) +YY Bison grammar file Bison +YZ Archive YAC + +Z Archive WinZipNT - compress - pack +Z01-Z99 Split WinRAR Archive +Z2S Zoo Tycoon 2 saved game Any game in the Zoo Tycoon 2 series +Z3 Infocom game module +Z3D Zmodeler-file Zmodeler 1 & 2 +Z64 Nintendo 64 ROM Nintendo 64 emulators +Z64 Nintendo 64 ROM Project64 Nintendo 64 emulator +Z80 Snapshot ZX Spectrum emulator by g.a.lunter +ZAD ZFax digitized voice file ZFax +ZARGO UML model project file ArgoUML +ZCC Cutpath for Zund digital cutting Zund Cut Center + systems +ZDG Compressed ZiffNet text document Z-view +ZED BitTorrent Link Podmailing +ZER Data file +ZIF Zoomable Image Format +ZIP Archive PKZip - WinZip - Mac OS X +ZOO Zoo Tycoon saved game Any game in the Zoo Tycoon (first) + series +ZS Script for Minecraft mod Minetweaker Minecraft Mod + MineTweaker^[8] +ZTD Zoo Tycoon data Zoo Tycoon +ZUR High level compressed file +ZUZ Cost estimating file ZUZIA ZUZIAbim +ZYP Reason Subtractor Patch File Propellerhead Reason +ZZT ZZT World Any world created using the ZZT + editor