Here is a compilation of all the file formats i could find.
First its a list by tipe, then in Alphabetic order.
Just use your browser search tool to find stuff, or read til the end (if you can)
ORDER BY TIPE:
Archive and compressed
Main article: List of archive formats
The most common compression files to the standard user are .zip and .rar. However, there are many more.
* .?Q? - files compressed by the SQ program.
* 7z 7-Zip compressed file
* ace
* ALZ - Alzip format
* ARC
* ARJ
* big Special file compression format used by Electronic Arts for compressing the data for many of EA's games
* BKF (.bkf) - Microsoft backup
* bzip2 (.bz2)
* cab - Microsoft Cabinet
* DAA - Closed-format, Windows-only compressed disk image
* deb - Debian Linux install package
* DMG - an Apple compressed/encrypted format
* EEA - An encrypted CAB, ostensibly for protecting e-mail attachments
* GHO (.gho, .ghs) - Norton Ghost
* gzip (.gz) - Compressed file
* jar - ZIP file with manifest for use with Java applications.
* LBR - Library file
* LQR - LBR Library file compressed by the SQ program.
* LHA (.lzh)
* lzo
* lzx
* PAK - Enhanced type of .ARC archive
* Parchive (.par, .par2)
* Doom³ archive (.pk4) (Opens similarly to a zip archive.)
* RAR Rar Archive (.rar), for multiple file archive (rar to .r01-.r99 to s01 and so on)
* sit/sitx - StuffIt (Macintosh)
* tar
* .tar.gz, .tgz (gzipped tar file)
* TIB (.tib) - Acronis TrueImage
* uha (Ultra High Archive Compression)
* UIF
* VSA - Altiris Virtual Software Archive
* zoo
* zip
[edit] Computer-aided
Computer-aided is a prefix for several categories of tools (ie. design, manufacture, engineering) which assist professionals in their respective fields (ie. machining, architecture, schematics).
Computer-aided design (CAD)
Computer-aided design (CAD) software assists engineers, architects and other design professionals in project design.
* CAD - CadStd
* DWG - AutoCAD and Open Design Alliance applications
* DGN - MicroStation design file
* DXF - ASCII Drawing Interchange file format
* GERBER, or Gerber file
* ICD - IronCAD 2D CAD file
* EXCELLON, or Excellon file
* IGES
* Intergraph's Intergraph Standard File Formats
* Industry Foundation Classes for sharing AEC and FM data.
* SLDASM - SolidWorks Assembly drawing
* SLDDRW - SolidWorks 2D drawing
* SLDPRT - SolidWorks 3D part model
* Softimage's dotXSI
* STL Stereo Lithographic data format (see [1]) used by various CAD systems and stereo lithographic printing machines.
* PRT - Unigraphics
[edit] Electronic design automation (EDA)
Electronic design automation (EDA), or electronic computer-aided design (ECAD), is specific to the field of electrical engineering.
* GDSII
* OASIS, Open Artwork System Interchange Standard
* OpenAccess
* SPICE netlist format (see SPICE, netlist)
* LEF/DEF
* Intel HEX
[edit] Test technology
Files output from Automatic Test Equipment or post-processed from such.
* Standard Test Data Format
[edit] Database
* ACCDB - Microsoft Database (Microsoft Office Access 2007)
* DB - Paradox
* DBF - DBase, DBase III/IV/V, Microsoft FoxPro
* EAP - Enterprise Architect Project
* FDB - Firebird Databases
* FP? - Filemaker
* FRM - MySQL table definition
* GDB - Borland InterBase Databases
* KEXI - Kexi database file (SQLite-based)
* KEXIC - shortcut to a database connection for a Kexi databases on a server
* MDB (.mdb, .ldb) - Microsoft Database (Access)
o ADP - Microsoft Access project (used for accessing databases on a server)
* MDE - Compiled Microsoft Database (Access)
* MDF - Microsoft SQL Server Database
* MYD - MySQL MyISAM table data
* MYI - MySQL MyISAM table index
* NSF - Lotus Notes database
* NTF - Lotus Notes database design template
* ODB - OpenOffice.org Base
* PDI - Portable Database Image
* SQL - bundled SQL queries
* WDB - Microsoft Works Database
[edit] Document
These files store formatted text.
* ABW - AbiWord document
* AFP - Advanced Function Presentation - IBc
* Amigaguide
* ANS - ANSI text with Layout
* ASC - ASCII text with Layout
* AWW - Ability Write
* CWK - ClarisWorks / AppleWorks document
* DOC - Microsoft Word document
* DOCX - Microsoft Word 2007 XML based format
* DOT - Microsoft Word document template
* DOTX - Microsoft Word 2007 document template
* HTML - HyperText Markup Language (.html, .htm)
* HWP - Haansoft Hangul Word Processor document
* LWP - Lotus Word Pro
* MCW - Microsoft Word for Macintosh (versions 4.0 - 5.1)
* ODT - OpenDocument Text document
* OTT - OpenDocument text document template
* PAGES - Apple Pages Presentation
* PAP - Papyrus word processor document
* Radix-64
* RTF - Rich Text document
* SDW - StarWriter text document, used in earlier versions of StarOffice
* STW - StarOffice/OpenOffice.org/NeoOffice text document template
* SXW - StarOffice/OpenOffice.org/NeoOffice text document
* TeX (.tex)
* Texinfo (.info)
* Troff
* TXT - ASCII or Unicode raw text file
* UOML - UniqueObject Markup Language (UOML) is a XML-based markup language; uniqueobject.com
* WPD - WordPerfect document
* WPS - Microsoft Works document
* WPT - Microsoft Works document template
* WRF - ThinkFree Write
* WRI - Microsoft Write document
* XHTML (.xhtml, .xht)
* XML - eXtensible Markup Language - broader than just documents - OpenOffice employs XML
Font file
* ABF - Adobe Binary Screen Font
* AFM - Adobe Font Metrics
* BDF - Bitmap Distribution Format
* BMF - ByteMap Font Format
* FON - Bitmapped Font - Microsoft Windows
* MGF - MicroGrafx Font
* OTF - OpenType Font
* PCF - Portable Compiled Font
* PostScript Font - Type 1, Type 2
o PFA - Printer Font ASCII
o PFB - Printer Font Binary - Adobe
o PFM - Printer Font Metrics - Adobe
o FOND - Font Description resource - Mac OS
* SNF - Server Normal Format
* TFM - TeX font metric
* TTF (.ttf, .ttc) - TrueType Font
[edit] Geographic information system
* APR (ESRI ArcView 3.3 and earlier project file)
* DEM (USGS DEM file format)
* E00 (ARC/INFO interchange file format)
* GeoTIFF (Geographically located raster data)
* GPX (XML-based interchange format)
* MXD (ESRI ArcGIS project file, 8.0 and higher)
* SHP (ESRI shapefile)
* World TIFF (Geographically located raster data: text file giving corner coordinate, raster cells per unit, and rotation)
* DTED (Digital Terrain Elevation Data)
[edit] Graphical information organizers
* 3DT - 3D Topicscape The database in which the meta-data of a 3D Topicscape is held. A 3D Topicscape is a form of 3D concept map (like a 3D mind-map) used to organize ideas, information and computer files.
* ATY - 3D Topicscape file, produced when an association type is exported by 3D Topicscape. Used to permit round-trip (export Topicscape, change files and folders as desired, re-import them to 3D Topicscape).
* FES - 3D Topicscape file, produced when a fileless occurrence in 3D Topicscape is exported to Windows. Used to permit round-trip (export Topicscape, change files and folders as desired, re-import them to 3D Topicscape).
* MMP - Mind Manager mind map file.
* TPC - 3D Topicscape file, produced when an inter-Topicscape topic link file is exported to Windows. Used to permit round-trip (export Topicscape, change files and folders as desired, re-import them to 3D Topicscape).
[edit] Graphics
Main article: graphics file formats.
[edit] Raster graphics
Raster (or Bitmap) files store images as a group of pixels.
* ACT - Adobe Color Table. Contains a raw color palette and usually consists of 256 24-bit RGB colour values.
* ART - America Online proprietary format
* BMP - Microsoft Windows Bitmap formatted image
* BLP - Blizzard Entertainment proprietary texture format
* CIT - Intergraph is a monochrome bitmap format
* CPT - Corel PHOTO-PAINT image
* CUT - Dr. Halo image file
* DIB - Device-Independent Bitmap graphic
* DjVu - DjVu for scanned documents
* Exif - Exchangeable image file format (Exif) is a specification for the image file format used by digital cameras
* GIF - CompuServe's Graphics Interchange Format
* ICNS - file format use for icons in Mac OS X. Contains bitmap images at multiple resolutions and bitdepths with alpha channel.
* ICO - a file format used for icons in Microsoft Windows. Contains small bitmap images at multiple resolutions and sizes.
* IFF (.iff, .ilbm, .lbm) - ILBM
* JNG - a single-frame MNG using JPEG compression and possibly an alpha channel.
* JPEG, JFIF (.jpg or .jpeg) - a lossy image format widely used to display photographic images.
* JP2 - JPEG2000
* LBM - Deluxe Paint image file
* MAX - ScanSoft PaperPort document
* MIFF - ImageMagick's native file format
* MNG - Multiple Network Graphics, the animated version of PNG
* MSP - a file format used by old versions of Microsoft Paint. Replaced with BMP in Microsoft Windows 3.0
* NITF - A US Government standard commonly used in Intelligence systems
* PBM - Portable bitmap
* PC1 - Low resolution, compressed Degas picture file
* PC2 - Medium resolution, compressed Degas picture file
* PC3 - High resolution, compressed Degas picture file
* PCX - a lossless format used by ZSoft's PC Paint, popular at one time on DOS systems.
* PDN - Paint.NET image file
* PGM - Portable graymap
* PI1 - Low resolution, uncompressed Degas picture file
* PI2 - Medium resolution, uncompressed Degas picture file
* PI3 - High resolution, uncompressed Degas picture file
* PICT, PCT - Apple Macintosh PICT image
* PNG - Portable Network Graphic (lossless, recommended for display and edition of graphic images)
* PNM - Portable Any Map graphic bitmap image
* PPM - Portable Pixmap (Pixel Map) image
* PSB - Adobe Photoshop Big image file (for large files)
* PSD, PDD - Adobe Photoshop Drawing
* PSP - Paint Shop Pro image
* PX - Pixel image editor image file
* PXR - Pixar Image Computer image file
* QFX - QuickLink Fax image
* RAW - General term for minimally processed image data (acquired by a digital camera)
* RLE - a run-length encoded image
* SCT - Scitex Continuous Tone image file
* SGI, RGB, INT, BW - Silicon Graphics Image
* TGA (.tga, .targa, .icb, .vda, .vst, .pix) - Truevision TGA (Targa) image
* TIFF (.tif or .tiff) Tagged Image File Format (usually lossless, but many variants exist, including lossy ones)
* XBM - X Window System Bitmap
* XCF - GIMP image (from Gimp's origin at the eXperimental Computing Facility of the University of California)
* XPM - X Window System Pixmap
Vector graphics
Vector graphics use geometrical primitives such as points, lines, curves, and polygons to represent images.
* AWG - Ability Draw
* AI - Adobe Illustrator Document
* EPS - Encapsulated Postscript
* CGM - Computer Graphics Metafile an ISO Standard
* CDR - CorelDRAW vector image
* CMX - CorelDRAW vector image
* DXF - ASCII Drawing Interchange file format, used in AutoCAD
* SVG - Scalable Vector Graphics, employs XML
* Scene description languages (3D vector image formats)
o MOVIE.BYU
o RenderMan
o VRML - Virtual Reality Modeling Language
o X3D
* WMF - Windows MetaFile
* EMF - Enhanced (Windows) MetaFile, an extension to WMF
3D graphics
3D graphics are 3D models that allow you to build models in real-time or non real-time 3D rendering.
* MAX,3DS - 3D Studio Max Model (.max, .3ds)
* MA - Alias Maya ASCII File (.ma)
* MB - Alias Maya Binary File (.mb)
* AC - AC3D Model (.ac)
* AN8 - Anim8or Model (.an8)
* AOI - Art of Illusion Model (.aoi)
* B3D - Blitz3D Model (.b3d)
* BLEND - Blender (.blend)
* COB - Caligari Object (.cob)
* DAE - COLLADA (.dae)
* FACT - Electric Image (.fac)
* X - DirectX 3D Model (.x)
* DTS - Torque Game Engine (.dts)
* LWO - Lightwave Object (.lwo)
* LWS - Lightwave Scene (.lws)
* MESH - Meshwork Model (.mesh)
* OBJ - OBJ (.obj)
* 3DMF - QuickDraw 3D Metafile (.3dmf)
* RWX - RenderWare Object (.rwx)
* SLDASM - SolidWorks Assembly Document (.sldasm)
* SLDPRT - SolidWorks Part Document (.sldprt)
* CFL - Compressed File Library (.cfl)
* WINGS - Wings3D (.wings)
* Z3D - Zmodeler (.z3d)
Object code, executable files, shared and dynamically-linked libraries
* .8BF files are plugins for some photo editing programs including Adobe Photoshop, Paint Shop Pro, and Helicon Filter.
* a.out (no suffix for executable image, .o for object files, .so for shared object files; classic UNIX object format, now often superseded by ELF)
* .Class files, used in Java
* .COFF (no suffix for executable image, .o for object files) UNIX Common Object File Format, now often superseded by ELF
* COM files, used in DOS
* .DLL; used in Microsoft Windows
* .EAR files, archives of Java enterprise applications
* .ELF (no suffix for executable image, .o for object files, .so for shared object files) used in many modern Unix and Unix-like systems, including Solaris, other System V Release 4 derivatives, Linux, and BSD)
* MZ EXE (.exe; used in DOS)
* .JAR files, archives of Java class files
* .XPI (which is a PKZIP archive that can be run by Mozilla web browsers to install software) (.xpi)
* Mach-O (no suffix for executable image, .o for object files, .dylib and .bundle for shared object files) Mach based systems, notably native format of Mac OS X)
* PE (.EXE, .DLL; used in Microsoft Windows and some other systems)
* .PEF (Mac OS versions 9 and under; compatible with Mac OS X via the Classic emulator)
* .s1es - Executable used for S1ES learning system.
* .WAR files, archives of Java Web applications
Object Extensions
* .VBX - Visual Basic Extensions
* .OCX - Object Control Extensions
* .tlb - Windows Type Library
Page description language
* DVI
* PCL
* PostScript (.ps, .ps .gz)
* SNP - Microsoft Access Report Snapshot
* XPS
* XSL-FO (Formatting Objects)
* Configurations, Metadata
o CSS
o XSLT,XSL - XML Style Sheet (.xslt, .xsl)
o TPL - Web template (.tpl)
[edit] Presentation
* KEY, KEYNOTE - Apple Keynote Presentation
* ODP - OpenDocument presentation
* OTP - OpenDocument presentation template
* PPS - Microsoft PowerPoint Show
* PPT - Microsoft PowerPoint Presentation
* PRZ - Lotus Freelance Graphics
* SHF - ThinkFree Show
* STI - OpenOffice.org 1.* Presentation template
* SXI - OpenOffice.org 1.* Presentation
* WATCH - Dataton Watchout Presentation
[edit] Scientific data formats (data exchange)
* IMG,HDR - Analyze (.img/.hdr)
* CDF - Common Data Format [2]
* FITS Flexible Image Transport format - Standard data format for astronomy [3]
* NetCDF Network common data format [4]
* HDR, [HDF][5], h4 or h5 - Hierarchical Data Format [6]
* SDXF (Structured Data Exchange Format)
* DCM - DICOM format
[edit] Chemical/biological file formats
* Details can be found in the chemical file format article.
* Typical examples
o CML - Chemical Markup Language (CML) (.cml)
o Chemical table file (CTab) (.mol, .sd, .sdf)
o Joint Committee on Atomic and Molecular Physical Data (JCAMP) (.dx, .jdx)
o Simplified molecular input line entry specification (SMILES) (.smi)
[edit] Script
* ASL - anim8or scripting language
* ASP - Active Server Pages
* AU3 - AutoIt version 3
* BAT - Batch file
* BAS - QBasic
* BB - Blitz3D
* BMAX - BlitzMax
* CMD - Batch file
* EGG - Chicken
* HTA - HTML Application
* ICI - ICI
* JS - JavaScript
* LUA - Lua
* MRC - mIRC Script
* NUT - Squirrel
* PHP - PHP
* PHP? - PHP (? = version number)
* PL - Perl
* PS1 - Windows PowerShell shell script
* PS1XML - Windows PowerShell format and type definitions
* PSC1 - Windows PowerShell console file
* PY - Python
* PYC - Python
* PYO - Python
* RB - Ruby
* SCPT - Applescript
* SH - Shell script
* TCL - Tcl
* VBS - Visual Basic Script
Signal data formats (non-audio)
* ACQ - AcqKnowledge File Format for Windows/PC from Biopac
* BKR - The EEG data format developed at the University of Technology Graz
* BDF - BioSemo data format - similar to EDF but 24bit
* CFWB - Chart Data File Format from ADInstruments
* EDF - European data format
* FEF - File Exchange Format for Vital signs
* GDF - General data formats for biomedical signals
* GMS - Gesture And Motion Signal format
* MFER - Medical waveform Format Encoding Rules
* SCP-ECG - Standard Communication Protocol for Computer assisted electrocardiography
* SEG Y - Reflection seismology data format
* SIGIF- SIGnal Interchange Format
* and many others [7]
Sound and music
[Lossless audio
* Uncompressed
o AIFF
o AU
o CDDA
o IFF-8SVX
o IFF-16SV
o RAW (raw samples without any header or sync)
o WAV - Microsoft Wave
* Compressed
o FLAC (free lossless codec of the Ogg project)
o LA - Lossless Audio (.la)
o PAC - LPAC (.pac)
o M4A - Apple Lossless (M4A)
o APE - Monkey's Audio (APE)
o OptimFROG
o RKA - RKAU (.rka)
o SHN - Shorten (SHN)
o TTA free lossless audio codec (True Audio)
o WV - WavPack (.wv)
o WMA - Windows Media Audio 9 Lossless (WMA)
Lossy audio
* MP2 (MPEG Layer 2)
* MP3 (MPEG Layer 3)
* Speex (Ogg project, specialized for voice, low bitrates)
* Vorbis (Ogg project, free and similar in principle to MP3)
* GSM (GSM Full Rate, originally developed for use in mobile phones)
* WMA - Windows Media Audio (.WMA)
* AAC (.m4a, .mp4, .m4p, .aac) - Advanced Audio Coding (usually in an MPEG-4 container)
* MPC - Musepack
* VQF - Yamaha TwinVQ
* RealAudio (RA, RM)
* OTS Audio File (similar to MP3, with more data stored in the file and slightly better compression; designed for use with OtsLabs' OtsDJ)
* SWA - Macromedia Shockwave Audio (Same compression as MP3 with additional header information specific to Macromedia Director - see What is the difference between MP3 and SWA files?)
* VOX - Dialogic ADPCM Low Sample Rate Digitized Voice (VOX)
* VOC - Creative Labs Soundblaster Creative Voice 8-bit & 16-bit (VOC)
* DWD - DiamondWare Digitized (DWD)
* SMP - Turtlebeach SampleVision (SMP)
Other music formats
* CUST - (DeliPlayer custom sound file format)
* MID - (standard MIDI file; most often just notes and controls but occasionally also sample dumps)
* GYM - Genesis YM2612 log
* VGM - (stands for "Video Game Music", log for several different chips)
* PSF - Portable Sound Format
* NSF - (bytecode program to play NES music)
* MP3 - MPEG-1 Audio Layer 3
* MOD - (Soundtracker and Protracker sample and melody modules)
* PTB - (Power Tab Editor tab)
* S3M (ScreamTracker 3 module, with a few more effects and a dedicated volume column)
* XM - (Fast Tracker module, adding instrument envelopes)
* IT - (Impulse Tracker module, adding compressed samples, note-release actions, and more effects including a resonant filter)
* MT2 - (MadTracker 2 module. It could be resumed as being XM and IT combined with more features like track effects and automation.)
* MNG - (BGM for the Creatures game series, starting from Creatures 2; a free editor and player is available)
* PSF - PlayStation sound format.
* RMJ - RealJukebox Media used for RealPlayer.
* SPC - Super Nintendo Entertainment System sound file format.
* NIFF
* MusicXML
* YM - (Atari ST/Amstrad CPC YM2149 sound chip format)
Playlist formats
* ASX - Advanced Stream Redirector (.asx)
* M3U
* PLS
* RAM - Real Audio Metafile For Real Audio files only.
Audio Editing & Music Production formats
* AUP - Audacity project file
* CEL - Adobe Audition loop file
* CPR - Steinberg Cubase project file
* CWP - Cakewalk Sonar project file
* DRM - Steinberg Cubase drum file
* OMF - cross-application format Open Media Framework application-exchange bundled format
* SES - Adobe Audition multitrack session file
* STF - StudioFactory project file. It contains all necessary patches, samples, tracks and settings to play the file.
* SYN - SynFactory project file. It contains all necessary patches, samples, tracks and settings to play the file.
[edit] Source code for computer programs
(see also: Script)
* ASM, S – Assembly Language source
* BAS – BASIC, Visual Basic module
* C – C source
* CLS – Visual Basic class
* COB, CBL – Cobol source
* CPP, CC, CXX – C++ source
* CS – C# source
* D – D source
* E - Eiffel source
* FOR, FTN, F, F77 – Fortran source
* FRM - Visual Basic form
* FRX - Visual Basic form stash file (binary form file)
* GM6 - Game Maker Editable file as of version 6.x
* GMD - Game Maker Editable file up to version 5.x
* GMK - Game Maker Editable file as of version 7.x
* H – C/C++ header file
* HPP, HXX – C++ header file
* INC – Turbo Pascal included source
* JAVA – Java source
* L – Lex source
* M - Objective-C source
* M - Matlab
* M4 – m4 source
* ML – Standard ML / Objective CAML source
* N – Nemerle source
* PAS, PP, P – Pascal source (DPR for projects)
* P – Parser source
* PHP, PHP3, PHP4, Phtml – PHP source
* PL, PM – Perl
* PY – Python programming language source
* RESX - Resource file for .NET applications
* VB – Visual Basic.NET source
* VBP – Visual Basic project
* Y – YACC source
Spreadsheet
* 123 - Lotus 1-2-3
* AWS - Ability Spreadsheet
* CLF - ThinkFree Calc
* CSV - Comma-Separated Values
* gnumeric - Gnumeric spreadsheet, a gziped XML file
* ODS - OpenDocument spreadsheet
* OTS - OpenDocument spreadsheet template
* QPW - Quattro
* STC - StarOffice/OpenOffice.org 1.* Spreadsheet template
* SXC - StarOffice/OpenOffice.org 1.* Spreadsheet
* TAB - tab delimited columns; also TSV (Tab-Separated Values)
* VC - Visicalc
* WK1 - Lotus 1-2-3 up to version 2.01
* WK3 - Lotus 1-2-3 version 3.0
* WK4 - Lotus 1-2-3 version 4.0
* WKS - Lotus 1-2-3
* WKS - Microsoft Works
* WQ1 - Quattro Pro DOS version
* XLK - Microsoft Excel worksheet backup
* XLS - Microsoft Excel worksheet sheet
* XLR - Microsoft Works version 6.0
* XLT - Microsoft Excel worksheet template
* XLW - Microsoft Excel worksheet workspace (version 4.0)
Tabulated data
* tab
* CSV - Comma-separated values
* dif (accessible by many spreadsheet applications)
Video
Main article: video file formats.
* AAF (mostly intended to hold edit decisions and rendering information, but can also contain compressed media essence)
* 3GP - the most common video format for cell phones
* GIF - Animated GIF(simple animation; until recently often avoided because of patent problems)
* ASF (ASF is a shell, which enables any form of compression to be used; MPEG-4 is common. Video in ASF-containers is also called Windows Media Video (WMV))
* AVI - (AVI is a shell, which enables any form of compression to be used; MPEG-1 and a variant of MPEG-4 are common)
* DSH
* FLV (*.flv) A video file encoded to run in a flash animation.
* M1V MPEG-1 Video file
* M2V MPEG-2 Video file
* SWF - Macromedia Flash (.swf for viewing,
* FLA - Macromedia Flash for producing) (
* MKV - Matroska (*.mkv) (Matroska is a container format, which enables any video format such as MPEG-4 or Xvid to be used along with other content such as subtitles and detailed meta information)
* WRAP - MediaForge (*.wrap)
* MNG (mainly simple animation containing PNG and JPEG objects, often somewhat more complex than animated GIF)
* MOV (QuickTime, a container format, which enables any form of compression to be used; Sorenson codec is the most common. QTCH is the filetype for cached video and audio streams.)
* MPEG (.mpeg, .mpg, .mpe)
* MPEG-4, shortened "MP4", a popular video format most often used for Sony's PlayStation Portable and Apple's iPod.
* MXF Material Exchange Format is a standardized wrapper format for audio/visual material developed by SMPTE
* NSV Nullsoft Streaming Video is a media container designed for streaming video content over the internet.
* OGM (OGM is a container format created so that Ogg Vorbis could be used for the audio of a video as this could not be done with AVI)
* Tarkin (Ogg project, all Tarkin files are Ogg files)
* Theora (Ogg project, all Theora files are Ogg files)
* RM - RealMedia
* SVI Samsung video format for portable players
* SMI SAMI Caption file. (HTML like subtitle for movie files)
* Xvid
Video Editing & Production formats
* MSWMM - Windows Movie Maker Project file
* PPJ - Adobe Premiere Pro Video Editing File
Video game data
List of common file formats of data for video games on systems that support filesystems, most commonly PC games.
* MAP - format used by Duke Nukem 3D, Doom³ and various other games. (Note- the file type structure may differ between games.)
* MAP - format used by Halo: Combat Evolved for archive compression.
* Simcity 4, DBPF (.dat, .SC4Lot, .SC4Model) (All game plugins use this format, commonly with different file extensions)
* DBPF - The Sims 2, DBPF, Package
* BOL - used for levels on Poing!PC
* UT2K4 - for Unreal Tournament 2004
* WAD - used by DOOM
* PAK - used by Quake and Quake2 engine games to store game data
* PK3 - used by the Quake III game engine and MOHAA to store game data, textures e.t.c. Is actually a Zip file.
* REP - used by Blizzard Entertainment for scenario replays in StarCraft
[edit] Video game storage media
List of the most common filename extensions used when a game's ROM image or storage medium is copied from an original ROM device to an external memory such as hard disk for back up purposes or for making the game playable with an emulator. In the case of cartridge-based software, if the platform specific extension is not used then filename extensions ".rom" or ".bin" are usually used to clarify that the file contains a copy of a content of a ROM. ROM, disk or tape images usually do not consist of a single file or ROM, rather an entire file or ROM structure contained within a single file on the backup medium.
* JAG,J64 - Atari Jaguar (.jag, .j64)
* GB - Game Boy (.gb) (this applies to the original Game Boy and the Game Boy Color)
* GBC - Game Boy Color (.gbc)
* GBA - Game Boy Advance (.gba)
* SAV - Game Boy Advance Saved Data Files (.sav)
* SGM - Visual Boy Advance Save States (.sgm)
* N64,V64 - Nintendo 64 (.n64, .v64)
* PJ - Project 64 Save States (.pj)
* NES - Nintendo Entertainment System (.nes)
* FDS - Famicom Disk System (.fds)
* JST - Jnes Save States (.jst)
* GG - Sega Game Gear (.gg)
* SMS - Sega Master System (.sms)
* SMD,BIN - Sega Mega Drive/Sega Genesis (.smd or .bin)
* SMC,078 - Super NES (.smc, or .078) (.078 is for split ROMs, which are rare)
* FIG - Super Famicom (Japanese releases are rarely .fig, above extensions are more common)
* SRM - Super NES Saved Data Files (.srm)
* ZST - ZSNES Save States (.zst, .zs1-.zs9)
* FRZ - Snes9X Save States (.frz)
* PCE - TurboGrafx 16/PC Engine (.pce)
* NPC - Neo Geo Pocket (.npc)
* TZX - ZX Spectrum (.tzx) (for exact copies of ZX Spectrum games)
* TAP (for tape images without copy protection)
* Z80,SNA - (for snapshots of the emulator RAM)
* DSK - (for disk images)
* TAP - Commodore 64 (.tap) (for tape images including copy protection)
* T64 - (for tape images without copy protection, considerably smaller than .tap files)
* D64 - (for disk images)
* CRT - (for cartridge images)
* ADF - Amiga (.adf) (for 880K diskette images)
[edit] Virtual Machines
[edit] Microsoft Virtual PC/Virtual Server
See [8]
* VFD - Virtual Floppy Disk (.vfd)
* VHD - Virtual Hard Disk (.vhd)
* VUD - Virtual Undo Disk (.vud)
* VMC - Virtual Machine Configuration (.vmc)
* VSV - Virtual Machine Saved State (.vsv)
[edit] EMC VMware ESX/GSX/Workstation/Player
See [9]
* LOG - Virtual Machine Logfile (.log)
* VMDK,DSK - Virtual Machine Disk (.vmdk, .dsk)
* NVRAM - Virtual Machine BIOS (.nvram)
* VMEM - Virtual Machine paging file (.vmem)
* VMSD - Virtual Machine snapshot metadata (.vmsd)
* VMSN - Virtual Machine snapshot (.vmsn)
* VMSS,STD - Virtual Machine suspended state (.vmss, .std)
* VMTM - Virtual Machine team data (.vmtm)
* VMX,CFG - Virtual Machine configuration (.vmx, .cfg)
* VMXF - Virtual Machine team configuration (.vmxf)
Parallels Workstation
* HDD - Virtual Machine hard disk (.hdd)
* PVS - Virtual Machine preferences/configuration (.pvs)
* SAV - Virtual Machine saved state (.sav)
Webpage
* Static
o HTML - (.html, .htm) - HyperText Markup Language
o XHTML - (.xhtml, .xht) - eXtensible HyperText Markup Language
o XML - (.xml)
o MHTML - (.mht, .mhtml) - Archived HTML, store all data on one web page (text, images, etc) in one big file
* Dynamically generated
o ASP - (.asp) - Microsoft Active Server Page
o ASPX - (.aspx) - Microsoft Active Server Page. NET
o ADP - AOLserver Dynamic Page
o BML - (.bml) - Better Markup Language (templating)
o CFM - (.cfm) - ColdFusion
o CGI - (.cgi)
o JSP - (.jsp) JavaServer Pages
o Lasso - (.las, .lasso, .lassoapp)
o PL - Perl (.pl)
o PHP - (.php, .php?, .phtml) - ? is version number (previously abbreviated Personal Home Page, later changed to PHP: Hypertext Preprocessor)
o SSI - (.shtml) - HTML with Server Side Includes
XML, markup language and other web standards-based file formats
* EML - (.eml) - File format used by several desktop email clients
* RSS - (.rss, .xml) - Syndication file format
* Atom - (.atom, .xml) - Another syndication file format
Other
* GA3 - Graphical Analysis 3
* AXD - cookie extensions found in temporary internet folder
* KMC - tests made with KatzReview's MegaCrammer
* IGC - flight tracks downloaded from GPS devices in the FAI's prescribed format
* TOPC - TopicCrunch SEO Project file holding keywords, domain and search engine settings (ASCII);
* TMP - Temporary file
* CREDX - CredX Dat File
* GED - file format for exchanging genealogical data between different genealogical systems
ALPHABETIC ORDER:
A
* ABK Corel Draw AutoBackup
* ACL Corel Draw 6 keyboard accelerator
* ACM Windows Audio Compression Manager dynamic link library, ADPCM-based audio format used in games by Interplay
* ACP Microsoft Office Assistant Preview file
* ACT Microsoft Office Assistant Actor file
* ACV OS/2 drivers that compress and decompress audio data
* AD After Dark screensaver
* ADB Appointment database used by HP 100LX organizer
* ADD OS/2 adapter drivers used in the boot process
* ADM After Dark MultiModule screensaver
* ADP Used by FaxWorks to do setup for fax modem interaction
* ADR After Dark Randomizer screensaver
* AFM Adobe font metrics
* AF2 ABC Flowchart file
* AF3 ABC Flowchart file
* AI Adobe Illustrator drawing
* AIF Apple Mac AIFF sound
* ALB JASC Image Commander album
* ALL Arts & Letters Library
* AMS Velvert Studio music module (MOD) file
* ANC Canon Computer Pattern Maker file that is a selectable list of pattern colors
* ANI Animated Cursor
* ANS ANSI text
* API Application Program Interface file; used by Adobe Acrobat
* APR Lotus Approach 97 file
* APS Microsoft Visual C++ file
* ARC LH ARC (old version) compressed archive
* ARJ Robert Jung ARJ compressed archive
* ART Xara Studio drawing
* ART Canon Crayola art file
* ASA Microsoft Visual InterDev file
* ASC ASCII text
* ASD WinWord AutoSave
* ASM Assembler language source file
* ASP Active Server Page (an HTML file containing a Microsoft server-processed script)
* ASP Procomm Plus setup and connection script
* AST Claris Works "assistant" file
* ATT AT&T Group 4 bitmap
* AVI Microsoft Video for Windows movie
* AWD FaxView document
B
* BAK Backup file
* BAS BASIC code
* BAT Batch file
* BFC Windows 95 Briefcase document
* BG Backgammon for Windows game
* BI Binary file
* BIG Eletronic Arts Graphics File
* BIF GroupWise initialization file
* BIN Binary file
* BK Sometimes used to denote backup versions
* BK$ Also sometimes used to denote backup versions
* BKS An IBM BookManager Read bookshelf
* BLEND extensão com 4 digitos do software Blender3D.
* BMK An A bookmark file
* BMP Windows or OS/2 bitmap
* BM1 Apogee BioMenace data file
* BRX A file for browsing an index of multimedia options
* BSP Quake map
* BS1 Apogee Blake Stone data file
* BTM Batch file used by Norton Utilities
* B4 Helix Nuts and Bolts file
C
* C C code
* CAB Microsoft cabinet file (program files compressed for software distribution)
* CAL CALS Compressed Bitmap
* CAL Calendar schedule data
* CAS Comma-delimited ASCII file
* CAT IntelliCharge categorization file used by Quicken
* CB Microsoft clean boot file
* CCB Visual Basic Animated Button configuration
* CCF Multimedia Viewer configuration file used in OS/2
* CCH Corel Chart
* CCM Lotus CC:Mail "box" (for example, INBOX.CCM)
* CDA CD Audio Track
* CDF Microsoft Channel Definition Format file
* CDI Phillips Compact Disk Interactive format
* CDR Corel Draw drawing
* CDT Corel Draw template
* CDX Corel Draw compressed drawing
* CEL CIMFast Event Language file
* CFB Comptons Multimedia file
* CFG Configuration file
* CGI Common Gateway Interface script file
* CGM Computer Graphics Metafile
* CH OS/2 configuration file
* CHK File fragments saved by Windows Disk Defragmenter or ScanDisk
* CHP Ventura Publisher chapter
* CIL Clip Gallery download package
* CIM Sim City 200 file
* CIN OS/2 change control file that tracks changes to an INI file
* CK1 iD/Apogee Commander Keen 1 data file
* CK2 iD/Apogee Commander Keen 2 data file
* CK3 iD/Apogee Commander Keen 3 data file
* CK4 iD/Apogee Commander Keen 4 data file
* CK5 iD/Apogee Commander Keen 5 data file
* CK6 iD/Apogee Commander Keen 6 data file
* CLASS Java class
* CLP Windows Clipboard file
* CLS Visual Basic Class Module
* CMD Command file for Windows NT (similar to a DOS .BAT file)
* CMD DOS CP/M command file
* CMD dBase-II program file
* CMF Corel Metafile
* CMP JPEG Bitmap
* CMP Address document
* CMV Corel Move animation
* CMX Corel Presentation Exchange image
* CNF Configuration file used by Telnet, Windows, and other applications
* CNM Windows application menu options and setup file
* CNQ Compuworks Design Shop file
* CNT Windows (or other) system content files for the help index and other purposes
* COB trueSpace2 object
* COD Microsoft C compiler output as displayable assembler with original C as comments
* COM Command file (program)
* CPD Fax Cover document
* CPE Fax Cover document
* CPI Microsoft MS-DOS code page information file
* CPL Control Panel extension
* CPL Corel colour palette
* CPP C++ code
* CPR Corel Presents Presentation
* CPT Corel Photo-Paint image
* CPX Corel Presentation Exchange Compressed drawing
* CRD Cardfile file
* CRP Corel Presents Run-Time Presentation
* CRT Certificate file
* CSC Corel Script
* CSP PC Emcee On-Screen image
* CSV Comma-separated values file
* CT Scitex CT Bitmap
* CTL Used in general to mean a file containing control information.
* CUE Microsoft Cue Cards data
* CUR Windows Cursor
* CUT Dr Halo bitmap
* CV Corel Versions archive
* CV Microsoft CodeView information screen
* CWK Claris Works data file
* CWS Claris Works template
* CXX C++ source code file
D
* DAT Data file
* DAT WordPerfect Merge Data
* DBF Aston-Tate dBASE database
* DBX DataBeam image
* DCR Shockwave file
* DCS Desktop Color Separation file
* DCX Fax image (based on PCX)
* DDF BTRIEVE database
* DEF SmartWare II data file
* DEF C++ Definition
* DER Certificate file
* DIB Device-Independent Bitmap
* DIC Dictionary
* DIF Data Interchange Format spreadsheet
* DIR Macromedia Director file
* DIZ Description file
* DLG C++ Dialogue Script
* DLL Dynamic-Link Library
* DMF X-Trakker music module (MOD) file
* DOC FrameMaker or FrameBuilder document
* DOC WordStar document
* DOC WordPerfect document
* DOC Microsoft Word document
* DOT Microsoft Word document Template
* DPP DrawPlus Drawing
* DPR Borland Delphi project header file
* DRV Driver
* DRW Micrografx Designer/Draw
* DSG DooM saved game
* DSM Dynamic Studio music module (MOD) file
* DSP Microsoft Developer Studio project
* DSO Topogrph
* DSQ Corel QUERY file
* DSW Microsoft Developer Studio workspace
* DWG AutoCAD drawing eXchange format
* DWT AutCAD template
* DXF AutoDesk Drawing Interchange format
E
* EMF Enhanced Windows Metafile
* ENC Encore file
* EPS Encapsulated PostScript image
* ER1 ERWin file
* ERX ERWin file
* EVY Envoy document
* EWL Microsoft Encarta document
* EXE Executable file (program)
F
* F FORTRAN file
* F77 FORTRAN file
* F90 FORTRAN file
* FAR Farandole Composer music module (MOD) file
* FAV Microsoft Outlook navigation bar
* FAX FAX Type image
* FH3 Aldus Freehand 3 drawing
* FIF Fractal image file
* FITS CCD camera image
* FLC AutoDesk FLIC animation
* FLI AutoDesk FLIC animation
* FLT Corel filter
* FLT StarTrekker music module (MOD) file
* FMB Oracle binary source code for form, version 4.0 e mais recentes
* FMT Oracle text format of form, version 4.0 e mais recentes
* FMT Microsoft Schedule+ print file
* FMX Oracle executable form, version 4.0 e mais recentes
* FOG Fontographer font
* FON fonte bitmap
* FOR FORTRAN file
* FOT Font-related file
* FP FileMaker Pro file
* FP1 Flying Pigs for Windows data file
* FP3 FileMaker Pro file
* FPX FlashPix bitmap
* FRM Form
* FRM FrameMaker or FrameBuilder document
* FRM Oracle executable form version 3.0 and earlier
* FRM Visual Basic form
* FRM WordPerfect Merge form
* FRX Visual Basic form stash file
G
* GAL Corel Multimedia Manager album
* GAY ------
* GCP Ground Control Point file used in image processing of remote sensing data .
* GED Graphic Environment Document (drawing)
* GEM GEM metafile
* GEN Ventura-Generated text file
* GFC Patton&Patton Flowcharting 4 flowchart file
* GFI Genigraphics Graphics Link presentation
* GFX Genigraphics Graphics Link presentation
* GID Windows 95 global index file (containing help status)
* GIF CompuServe bitmap
* GIM Genigraphics Graphics Link presentation
* GIX Genigraphics Graphics Link presentation
* GNA Genigraphics Graphics Link presentation
* GNX Genigraphics Graphics Link presentation
* GRA Microsoft Graph
* GRD Grid file, used in image processing of remote sensing data often to form map projections.
* GRP Program Manager Group
* GTK Graoumftracker (old) music module (MOD) file
* GT2 Graoumftracker (new) music module (MOD) file
* GWX Genigraphics Graphics Link presentation
* GWZ Genigraphics Graphics Link presentation
* GZ Unix Gzip compressed file
H
* H C program header
* HED HighEdit document
* HEL Microsoft Hellbender saved game
* HEX Macintosh BinHex 2.0 file
* HGL HP Graphics Language drawing
* HLP Help file
* HOG Lucas Arts Dark Forces WAD file
* HPJ Visual Basic Help Project
* HPP C++ program header
* HQX Macintosh BinHex 4.0 file
* HST History file
* HT HyperTerminal
* HTM Hypertext document
* HTML Hypertext document
* HTX Extended HTML template
I
* ICA Citrix file
* ICB Targa bitmap
* ICM Image Color Matching profile file
* ICO Windows Icon
* IDD MIDI Instrument Definition
* IDQ Internet Data Query file
* IFF Amiga ILBM
* IGF Inset Systems metafile
* IIF QuickBooks for Windows interchange file
* IMA WinImage file
* IMG GEM image
* INC Assembler language or Active Server include file
* INDD Adobe InDesign Document
* INF Information file
* INI Initialization file
* INP Oracle source code for form, version 3.0 and earlier
* INS InstallShield install script
* INS X-Internet sign-up file
* ISO Lists the files on a CD-ROM; based on the ISO 9660 CD-ROM file system standard
* ISP X-Internet sign-up file
* ISU InstallShield uninstall script
* IT Impulse Tracker music module (MOD) file
* IW Idlewild screensaver
J
* JAR Java ARchive file (a compressed file for applets and related files)
* JAVA Java source code
* JBF Paint Shop Pro image browser file
* JFF imagem bitmap
* JIF imagem bitmap
* JMP SAS JMPDiscovery chart-to-statistics file
* JN1 Epic MegaGames Jill of the Jungle data file
* JPEG imagem bitmap
* JPG imagem bitmap
* JS JavaScript source code
* JTF imagem bitmap
K
* KDC Kodak Photo-Enhancer
* KFX KoFax Group 4 image
* KYE Kye game data
* KML (extensão para arquivos XML do GoogleEarth.)
* KMZ (extensão para arquivos compactados do GoogleEarth.)
L
* LBM Deluxe Paint bitmap
* LDB Microsoft Access lock file
* LEG Legacy document
* LHA Alternate file suffix for LZH
* LIB Library
* LIS Output file produced by a Structured Query Reporting (SQR) program
* LOG Log file
* LPD Helix Nuts and Bolts file
* LRC Extensão para letras de música em sincronia com o arquivo MP3 da mesma música (usado em karaokê e MP3 players)
* LRC Intel Video Phone file
* LST List file
* LWO Lightwave Object file
* LWP Lotus Wordpro 96/97 file
* LZH LH ARC compressed archive
* LZS Skyroads data file
M
* M3D Corel Motion 3D animation
* MAC MacPaint image
* MAD Microsoft Access module
* MAF Microsoft Access Form
* MAK Visual Basic or MS Visual C++ Project
* MAM Microsoft Access Macro
* MAP Map file
* MAP Duke Nukem 3D WAD game file
* MAQ Microsoft Access Query
* MAR Microsoft Access Report
* MAS Lotus Freelance Graphics Smartmaster file
* MAT Microsoft Access Table
* MAX Paperport file
* MAX Extensão nativa do 3D Studio Max.
* MAZ Hover maze data
* MB1 Apogee Monster Bash data file
* MCC Dialer10 calling card
* MCS MathCAD image
* MCW Microsoft Word for Macintosh document
* MDA Microsoft Access add-in
* MDB Microsoft Access database
* MDE Microsoft Access MDE file
* MDL Digital Tracker music module (MOD) file
* MDL Quake model file
* MDN Microsoft Access blank database template
* MDW Microsoft Access Workgroup
* MDZ Microsoft Access wizard template
* MED Music Editor, OctaMED music module (MOD) file
* MER Format for interchanging spreadsheet/database data; recognized by Filemaker, Excel, and others
* MET Presentation Manager metafile
* MHTML (.mht, .mhtml) - Arquivo HTML, que armazena os dados de páginas web (texto, imagens, etc.) num só arquivo.
* MI Miscellaneous
* MIC Microsoft Image Composer file
* MID MIDI music
* MKA Áudio comprimido no formato Matroska
* MKV Vídeo comprimido no formato Matroska
* MMF Microsoft Mail File
* MMM Microsoft Multimedia Movie
* MMM fonte PostScript Type 1 (Multiple Master)
* MOD FastTracker, StarTrekker, Noise Tracker (etc.) music module file
* MOD Microsoft Multiplan spreadsheet
* MOV QuickTime for Windows movie
* MPE MPEG animation
* MPEG MPEG animation
* MPG MPEG animation
* MPP Microsoft Project file
* MPP CAD drawing file format
* MP3 MPEG Audio Layer 3 (AC3) file
* MSG Microsoft Mail message
* MSN Microsoft Network document
* MSP Microsoft Paint bitmap
* MTM MultiTracker music module (MOD) file
* MUS Music
* MVB Microsoft Multimedia Viewer file
* MWP Lotus Wordpro 97 Smartmaster file
N
* NAP NAP Metafile
* NCB Microsoft Developer Studio file
* NSF Lotus Notes database
* NST Noise Tracker music module (MOD) file
* NTF Lotus Notes database template
* NRG Nero Images
O
* OBD Microsoft Office binder template
* OBD Microsoft Office Binder
* OBJ Object file
* OBZ Microsoft Office Binder Wizard
* OCX Microsoft Object Linking and Embedding custom control
* ODF OpenDocument Format
* OFN Microsoft Office FileNew file
* OFT Microsoft Outlook template
* OKT Oktalyzer music module (MOD) file
* OLB OLE Object Library
* OLE OLE object
* OPT Microsoft Developer Studio file
* ORG Lotus Organiser file
* OR2 Lotus Organiser 2 file
* OR3 Lotus Organiser 97 file
* OTF fonte OpenType
P
* P10 Tektronix Plot 10 drawing
* PAB Microsoft Personal Address Book
* PAK Quake WAD file
* PAL Windows colour palette
* PAT Corel Draw pattern
* PBK Microsoft Phonebook
* PBM Portable Bitmap
* PCD Kodak Photo-CD image
* PCL HP Laserjet bitmap
* PCS PICS animation
* PCT Macintosh PICT drawing
* PCX ZSoft PC Paintbrush bitmap
* PDF Adobe Acrobat Portable Document Format
* PDF Netware Printer Definition File
* PDF Package Definition File from Microsoft Systems Management Server
* PDQ Patton&Patton Flowcharting PDQ Lite file
* PFA fonte PostScript Type 1 (ASCII)
* PFB fonte PostScript Type 1 (binary)
* PFC PF Component
* PFM fonte PostScript Type 1 (Printer Font Metrics)
* PGL HP Plotter drawing
* PGM Portable Graymap (bitmap)
* PIC PC Paint bitmap
* PIC Lotus picture
* PIC Macintosh PICT drawing
* PIF Program Information File
* PIF IBM PIF drawing
* PIG Lucas Arts Dark Forces WAD file
* PIN Epic Pinball data file
* PIN Epic Pinball data file
* PIX Inset Systems bitmap
* PJ MKS Source Integrity file
* PKG Microsoft Developer Studio application extension (similar to a DLL file)
* PL Perl program
* PLT HPGL Plotter drawing
* PLT AutoCAD Plot drawing
* PM5 Pagemaker 5.0 file
* PM6 Pagemaker 6.0 file
* P65 Pagemaker 6.5 file
* PNG Portable Network Graphics bitmap
* PNG Paint Shop Pro Browser catalogue
* PNT MacPaint graphic file
* POT Microsoft PowerPoint Template
* PP4 Picture Publisher 4 bitmap
* PPA Microsoft PowerPoint Add-in
* PPM Portable Pixelmap bitmap
* PPP PagePlus Publication
* PPS Microsoft PowerPoint slide show
* PPT Microsoft PowerPoint presentation
* PRE Lotus Freelance presentation
* PRF Windows system file
* PRN Print Table (space delimited text)
* PRS Harvard Graphics for Windows presentation
* PRZ Lotus Freelance Graphics 97 file
* PS Postscript Interpreted drawing
* PSD Adobe Photoshop bitmap
* PST Microsoft Outlook Personal Folder File
* PTM Polytracker music module (MOD) file
* PUB Ventura Publisher publication
* PUB Microsoft Publisher document
* PWD Microsoft Pocket Word document
* PWZ Microsoft PowerPoint Wizard
* PXL Microsoft Pocket Excel spreadsheet
* PY Python File
* PYW Python File Without Console
Q
* QAD PF QuickArt Document
* QBW QuickBooks for Windows file
* QDT Quick Books data file from the Quicken UK Accountancy/Tax/Invoice program
* QLB Quick Library
* QRY Microsoft Query
* QT QuickTime Movie
* QTM QuickTime Movie
* QXD Quark XPress file
R
* R Pegasus Mail resource file
* RA Real Audio sound
* RAM Real Audio sound
* RAR WinRar
* RAS Sun Raster Images bitmap
* RAW Raw File Format (bitmap)
* RC Microsoft Visual C++ Resource Script
* REC Recorder macro
* REG Registration file
* RES Microsoft Visual C++ Resource
* RFT RFT-DCA
* RLE Run-Length Encoded bitmap
* RM Real Audio video file
* RMI MIDI music
* ROV Rescue Rover data file
* RPT Microsoft Visual Basic Crystal Reports file
* RTF Rich Text Format document
* RTM Real Tracker music module (MOD) file
S
* SAM Ami Professional document
* SAV Saved game file
* SCC Microsoft Source Safe file
* SCD Matrix/Imapro SCODL slide image
* SCD Microsoft Schedule+ 7
* SCH Microsoft Schedule+ 1
* SCN trueSpace2 scene
* SCP Dial-Up Networking Script
* SCR Windows screensaver
* SCR Fax image
* SCT Scitex CT bitmap
* SC2 Microsoft Schedule+ 7
* SDL SmartDraw library
* SDR SmartDraw drawing
* SDT SmartDraw template
* SEA Self-expanding archive (used by Stuffit for Mac files and possibly e outros)
* SEP Tagged Image File Format (TIFF) bitmap
* SHB Corel Show presentation
* SHB Document shortcut file
* SHG Hotspot bitmap
* SHS Shell scrap file
* SHW Corel Show presentation
* SKP extensão de arquivo 3D do SketchUp.
* SIT Stuffit archive of Mac files
* SLK Symbolic Link (SYLK) spreadsheet
* SND NeXT sound
* SND Mac Sound Resource
* SPP PhotoPlus Pictures
* SQC Structured Query Language (SQR) common code file
* SQR Structured Query Language (SQR) program file
* STM Scream Tracker music module (MOD) file
* STY Ventura Publisher style sheet
* SVX Amiga 8SVX sound
* SWF Shockwave Flash Object
* SYS System file
* S3M Scream Tracker 3 music module (MOD) file
T
* TAR Tape Archive
* TAZ Unix Gzip/Tape Archive
* TEX Texture file
* TGA Targa bitmap
* TGZ Unix Gzip/Tape Archive
* THEME Windows 95 Desktop Theme
* THN Graphics Workshop for Windows thumbnail
* TIF Tag Image File Format (TIFF) bitmap
* TIFF Tag Image File Format (TIFF) bitmap
* TIG Tiger file, used by US government to distribute maps
* TLB OLE Type Library
* TMP Windows temporary file
* TRM Terminal file
* TRN MKS Source Integrity project usage log
* TTF fonte TrueType
* TWF TabWorks file
* TWW Tagwrite Template
* TX8 MS-DOS Text
* TXT Text
* T2T Sonata CAD modelling software file
U
* UDF Windows NT Uniqueness Database File
* ULT Ultratracker music module (MOD) file
* URL Internet shortcut
* USE MKS Source Integrity file
V
* VBP Visual Basic Project
* VBW Microsoft Visual Basic workspace
* VBX Visual Basic custom control
* VCF Vevi Configuration File; defines objects for use with Sense8's WorldToolKit
* VDA Targa bitmap
* VI Virtual Instrument file from National Instruments LABView product
* VLB Corel Ventura Library
* VOC Creative Labs Sound Blaster sound
* VP Ventura Publisher publication
* VSD Visio drawing (flow chart or schematic)
* VST Targa bitmap
* VSW Visio Workspace file
* VXD Microsoft Windows virtual device driver
W
* WAD Large file for Doom game containing video, player level, and other information
* WAV Windows Waveform sound
* WB1 QuattroPro for Windows spreadsheet
* WB2 QuattroPro for Windows spreadsheet
* WBK Microsoft Word Backup
* WBL Argo WebLoad II upload file
* WCM WordPerfect Macro
* WDB Microsoft Works database
* WEB CorelXara Web document
* WGP Wild Board Games data file
* WID Ventura width table
* WIL WinImage file
* WIZ Microsoft Word Wizard
* WK1 Lotus 123 versions 1 & 2 spreadsheet
* WK3 Lotus 123 version 3 spreadsheet
* WK4 Lotus 123 version 4 spreadsheet
* WKS Lotus 123 Worksheet spreadsheet
* WKS Microsoft Works document
* WLF Argo WebLoad I upload file
* WLL Microsoft Word Add-In
* WMF Windows Metafile
* WOW Grave Composer music module (MOD) file
* WP WordPerfect document
* WPW Novel PerfectWorks document
* WP4 WordPerfect 4 document
* WP5 WordPerfect 5 document
* WP6 WordPerfect 6 document
* WPD WordPerfect Demo
* WPD WordPerfect Document
* WPG WordPerfect Graphic
* WPS Microsoft Works document
* WPT WordPerfect Template
* WQ1 QuattroPro/DOS spreadsheet
* WQ2 QuattroPro/DOS version 5 spreadsheet
* WRI Write document
* WRL modelo para realidade virtual (VR)
* WS1 WordStar for Windows 1 document
* WS2 WordStar for Windows 2 document
* WS3 WordStar for Windows 3 document
* WS4 WordStar for Windows 4 document
* WS5 WordStar for Windows 5 document
* WS6 WordStar for Windows 6 document
* WS7 WordStar for Windows 7 document
* WSD WordStar 2000 document
* WVL Wavelet Compressed Bitmap
X
* XAR Corel Xara drawing
* XLA Microsoft Excel add-in
* XLB Microsoft Excel toolbar
* XLC Microsoft Excel chart
* XLD Microsoft Excel dialogue
* XLK Microsoft Excel backup
* XLM Microsoft Excel macro
* XLS Microsoft Excel worksheet
* XLT Microsoft Excel template
* XLV Microsoft Excel VBA module
* XLW Microsoft Excel workbook / workspace
* XM FastTracker 2, Digital Tracker music module (MOD) file
* XR1 Epic MegaGames Xargon data file
* XTP XTree data file
* XY3 XYWrite III document
* XY4 XYWrite IV document
* XYP XYWrite III Plus document
* XYW XYWrite for Windows 4.0 document
Y
* YAL Arts & Letters clipart library
* YBK Microsoft Encarta Yearbook
Z
* Z Unix Gzip
* ZIP Zip file
* ZOO An early compressed file format
0-9
* 000-999 Used to number old versions of files and number related data files
* 12M Lotus 123 97 Smartmaster file
* 123 Lotus 123 97 file
* 2GR and 3GR VGA Graphics driver/configuration files under Windows
* 386 arquivo usado em plataformas 80386 ou processadores mais recentes.
* 3DM formato do programa Rhinoceros3d.
* 3DS formato do programa 3dstudio para as antigas versões em DOS.
* 669 Composer 669, Unis Composer music mod file
Símbolos
* #01 and higher A method of numbering picture files for a roll of film that has been scanned
* $$$ Used by OS/2 to keep track of archived files
* @@@ Screen files used in the installation and instruction on use of applications
Some things are in my Mother Language...(portuguese)
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PS: i'm releasing a Extreme Overclocking guide
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