Welcome to The Skindex - the largest collection of community generated Minecraft skins. Download, upload and share your creations with the rest! Welcome to the new Minecraft Skin Viewer Thank you for visiting, we hope you enjoy using our site and we hope you come back again. Follow us on Twitter and/or Facebook to keep up to date and see new features before they're implemented.
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[1]
Some file formats, such as .txt, may be listed multiple times.
1Archive and compressed
3Computer-aided Design
7Financial records
11Graphics
20Scientific data (data exchange)
22Security
22.1Certificates and keys
24Sound and music
24.1Lossless audio
31Video
34Virtual machines
37Other
38Generalized files
38.1General data formats
38.2Generic file extensions
38.3Partial files
Archive and compressed[edit]
.?Q? – files compressed by the SQ program
7z – 7-Zip compressed file
AAC – Advanced Audio Coding
ace – ACE compressed file
ALZ – ALZip compressed file
APK – Applications installable on Android
APPX – Microsoft Application Package (.appx)
AT3 – Sony's UMD data compression
.bke – BackupEarth.com data compression
ARC – pre-Zip data compression
ARJ – ARJ compressed file
ASS (also SAS) – a subtitles file created by Aegisub, a video typesetting application (also a Halo game engine file)
B – (B file) Similar to .a, but a little less compressed...
BA – Scifer Archive (.ba), Scifer External Archive Type
big – Special file compression format used by Electronic Arts to compress the data for many of EA's games
BIN – compressed archive, can be read and used by CD-ROMs and Java, extractable by 7-zip and WINRAR
bjsn – Used to store The Escapists saves on Android.
BKF (.bkf) – Microsoft backup created by NTBackup.c
bzip2 (.bz2) –
bld – Skyscraper Simulator Building
cab – A cabinet (.cab) file is a library of compressed files stored as one file. Cabinet files are used to organize installation files that are copied to the user's system.[2]
c4 – JEDMICS image files, a DOD system
cab – Microsoft Cabinet
cals – JEDMICS image files, a DOD system
CLIPFLAIR (.clipflair, .clipflair.zip) – ClipFlair Studio ClipFlair component saved state file (contains component options in XML, extra/attached files and nested components' state in child .clipflair.zip files – activities are also components and can be nested at any depth)
CPT, SEA – Compact Pro (Macintosh)
DAA – Closed-format, Windows-only compressed disk image
deb – Debian install package
DMG – an Apple compressed/encrypted format
DDZ – a file which can only be used by the 'daydreamer engine' created by 'fever-dreamer', a program similar to RAGS, it's mainly used to make somewhat short games.
DN – Adobe Dimension CC file format
DPE – Package of AVE documents made with Aquafadas digital publishing tools.
.egg – Alzip Egg Edition compressed file
EGT (.egt) – EGT Universal Document also used to create compressed cabinet files replaces .ecab
ECAB (.ECAB, .ezip) – EGT Compressed Folder used in advanced systems to compress entire system folders, replaced by EGT Universal Document
ESD - Electronic Software Distribution, a compressed and encrypted WIM File
ESS (.ess) – EGT SmartSense File, detects files compressed using the EGT compression system.
Flipchart file (.flipchart) – Used in PrometheanActivInspire Flipchart Software.
GBP - GBP File Extension - What is a .gbp file and how do I open it? 2 types of files: 1. An archive index file that is created by Genie Timeline [3]. It contains references to the files that the user has chosen to backup; the references can be to an archive file or a batch of files. This files can be opened using Genie-Soft Genie Timeline on Windows. 2. A data output file created by CAD Printed Circuit Board (PCB). This type of file can be opened on Windows using Autodesk EAGLE EAGLE | PCB Design Software | Autodesk, Altium Designer [4], Viewplot Welcome to Viewplot.com ...For PCB Related Software;...Viewplot The Gerber Viewer & editor in one......PCB Elegance a professional layout package for a affordable price, Gerbv gerbv - A Free/Open Source Gerber Viewer on Mac using Autodesk EAGLE, Gerbv, gEDA gplEDA Homepage and on Linux using Autodesk EAGLE, gEDA, Gerbv
GHO (.gho, .ghs) – Norton Ghost
GIF (.gif) – Graphics Interchange Format
gzip (.gz) – Compressed file
HTML (.html) HTML code file
IPG (.ipg) – Format in which Apple Inc. packages their iPod games. can be extracted through Winrar
jar – ZIP file with manifest for use with Java applications.
LBR (.Lawrence) – Lawrence Compiler Type file
LBR – Library file
LQR – LBR Library file compressed by the SQ program.
MHTML – Mine HTML (Hyper-Text Markup Language) code file
MPQ Archives (.mpq) – Used by Blizzard games
BIN (.bin) – MacBinary
NTH (.nth) – Nokia Theme Used by NokiaSeries 40 Cellphones
OAR (.oar) – OmegaARc Archive
OSZ – osu! compressed beatmap archive
PAK – Enhanced type of .ARC archive
PAR (.par, .par2) – Parchive
PAF (.paf) – Portable Application File
PEA (.pea) – PeaZip archive file
PHP (.php) – PHP code file
PYK (.pyk) – Compressed file
PK3 (.pk3) – Quake 3 archive (See note on Doom³)
PK4 (.pk4) – Doom³ archive (Opens similarly to a zip archive.)
py / pyw – Python code file
RAR (.rar) – Rar Archive, for multiple file archive (rar to .r01-.r99 to s01 and so on)
RAG, RAGS – Game file, a game playable in the RAGS game-engine, a free program which both allows people to create games, and play games, games created have the format 'RAG game file'
RaX - Archive file created by RaX
RPM – Red Hat package/installer for Fedora, RHEL, and similar systems.
sb – Scratch file
sb2 – Scratch2 file
SEN – Scifer Archive (.sen) – Scifer Internal Archive Type
SIT (.sitx) – StuffIt (Macintosh)
SIS/SISX - Symbian Application Package
SKB – Google SketchUp backup File
SQ (.sq) – Squish Compressed Archive
SWM - Splitted WIM File, usually found on OEMRecovery Partition to store preinstalled Windows image, and to make Recovery backup (to USB Drive) easier (due to FAT32 limitations)
SZS – Nintendo Yaz0 Compressed Archive
TAR – group of files, packaged as one file
TGZ (.tar.gz) – gzipped tar file
TB (.tb) – Tabbery Virtual Desktop Tab file
TIB (.tib) – Acronis True Image backup
UHA – Ultra High Archive Compression
UUE (.uue) – unified utility engine – the generic and default format for all things UUe-related.
VIV – Archive format used to compress data for several video games, including Need For Speed: High Stakes.
VOL – video game data package.
VSA – Altiris Virtual Software Archive
WAX – Wavexpress – A ZIP alternative optimized for packages containing video, allowing multiple packaged files to be all-or-none delivered with near-instantaneous unpacking via NTFS file system manipulation.
WIM - A compressed disk image for installing Windows Vista or higher, Windows Fundamentals for Legacy PC, or restoring a system image made from Backup and Restore (Windows Vista/7)
XAP - Windows Phone Application Package
xz - xz compressed files, based on LZMA/LZMA2 algorithm
Z – Unixcompress file
zoo – based on LZW
zip – popular compression format
Physical recordable media archiving[edit]
ISO – The generic format for most optical media, including CD-ROM, DVD-ROM, Blu-ray Disc, HD DVD and UMD.
NRG – The proprietary optical media archive format used by Nero applications.
IMG – For archiving DOS formatted floppy disks, larger optical media, and hard disk drives.
ADF – Amiga Disk Format, for archiving Amiga floppy disks
ADZ – The GZip-compressed version of ADF.
DMS – Disk Masher System, a disk-archiving system native to the Amiga.
DSK – For archiving floppy disks from a number of other platforms, including the ZX Spectrum and Amstrad CPC.
D64 – An archive of a Commodore 64 floppy disk.
SDI – System Deployment Image, used for archiving and providing 'virtual disk' functionality.
MDS – DAEMON tools native disc image format used for making images from optical CD-ROM, DVD-ROM, HD DVD or Blu-ray Disc. It comes together with MDF file and can be mounted with DAEMON Tools.
MDX – New DAEMON Tools format that allows getting one MDX disc image file instead of two (MDF and MDS).
DMG – Macintosh disk image files
(MPEG-1 is found in a .DAT file on a video CD.)
CDI – DiscJuggler image file
CUE – CDRWrite CUE image file
CIF – Easy CD Creator .cif format
C2D – Roxio-WinOnCD .c2d format
DAA – PowerISO .daa format
B6T – BlindWrite 5/6 image file
Ceramics glaze recipes[edit]
File formats for software, databases, and websites used by potters and ceramic artists to manage glaze recipes, glaze chemistry, etc.
GlazeChem text format INSIGHT Live, OnLine INSIGHT
GlazeMaster .tab xml (GlazeMaster software)GlazeMaster™ | Welcome to masteringglazes.com | John HesselberthCeramic Recipes FAQ | Ceramic RecipesINSIGHT Live, OnLine INSIGHT
Computer-aided is a prefix for several categories of tools (e.g., design, manufacture, engineering) which assist professionals in their respective fields (e.g., machining, architecture, schematics).
Computer-aided design (CAD)[edit]
Computer-aided design (CAD) software assists engineers, architects and other design professionals in project design.
3DXML – Dassault Systemes graphic representation
3MF – Microsoft 3D Manufacturing Format[3]
ACP – VA Software VA – Virtual Architecture CAD file
AMF – Additive Manufacturing File Format
AEC – DataCAD drawing format[4]
AR – Ashlar-Vellum Argon – 3D Modeling
ART – ArtCAM model
ASC – BRL-CAD Geometry File (old ASCII format)
ASM – Solidedge Assembly, Pro/ENGINEER Assembly
BIN, BIM – Data Design System DDS-CAD
BREP – Open CASCADE 3D model (shape)
C3D – C3D Toolkit File Format
CCC – CopyCAD Curves
CCM – CopyCAD Model
CCS – CopyCAD Session
CAD – CadStd
CATDrawing – CATIA V5 Drawing document
CATPart – CATIA V5 Part document
CATProduct – CATIA V5 Assembly document
CATProcess – CATIA V5 Manufacturing document
cgr – CATIA V5 graphic representation file
ckd – KeyCreator CAD Modeling
ckt – KeyCreator CAD Modeling
CO – Ashlar-Vellum Cobalt – parametric drafting and 3D modeling
DRW – Caddie Early version of Caddie drawing – Prior to Caddie changing to DWG
DFT – Solidedge Draft
DGN – MicroStation design file
DGK – Delcam Geometry
DMT – Delcam Machining Triangles
DXF – ASCII Drawing Interchange file format, AutoCAD
DWB – VariCAD drawing file
DWF – Autodesk's Web Design Format; AutoCAD & Revit can publish to this format; similar in concept to PDF files; Autodesk Design Review is the reader
DWG – Popular file format for Computer Aided Drafting applications, notably AutoCAD, Open Design Alliance applications, and Autodesk Inventor Drawing files
EASM – SolidWorks eDrawings assembly file
EDRW – eDrawings drawing file
EMB – Wilcom ES Designer Embroidery CAD file
EPRT – eDrawings part file
EscPcb – 'esCAD pcb' data file by Electro-System (Japan)
EscSch – 'esCAD sch' data file by Electro-System (Japan)
ESW – AGTEK format
EXCELLON – Excellon file
EXP – Drawing Express format
F3D – Autodesk Fusion 360 archive file[5]
FCStd – Native file format of FreeCADCAD/CAM package
WRL – Similar to STL, but includes color. Used by various CAD systems and 3D printing rapid prototyping machines. Also used for VRML models on the web.
X_B – Parasolids binary format
X_T – Parasolids
XE – Ashlar-Vellum Xenon – for associative 3D modeling
ZOFZPROJ – ZofzPCB 3D PCB model, containing mesh, netlist and BOM
Electronic design automation (EDA)[edit]
Electronic design automation (EDA), or electronic computer-aided design (ECAD), is specific to the field of electrical engineering.
BRD – Board file for EAGLE Layout Editor, a commercial PCB design tool
BSDL – Description language for testing through JTAG
CDL – Transistor-level netlist format for IC design
CPF – Power-domain specification in system-on-a-chip (SoC) implementation (see also UPF)
DEF – Gate-level layout
DSPF – Detailed Standard Parasitic Format, Analog-level parasitics of interconnections in IC design
EDIF – Vendor neutral gate-level netlist format
FSDB – Analogwaveform format (see also Waveform viewer)
GDSII – Format for PCB and layout of integrated circuits
HEX – ASCII-coded binary format for memory dumps
LEF – Library Exchange Format, physical abstract of cells for IC design
LIB – Library modeling (function, timing) format
MS12 – NI Multisim file
OASIS – Open Artwork System Interchange Standard
OpenAccess – Design database format with APIs
PSF – Cadence proprietary format to store simulation results/waveforms (2GB limit)
PSFXL – Cadence proprietary format to store simulation results/waveforms
SDC – Synopsys Design Constraints, format for synthesis constraints
SDF – Standard for gate-level timings
SPEF – Standard format for parasitics of interconnections in IC design
SPI, CIR – SPICE Netlist, device-level netlist and commands for simulation
SREC, S19 – S-record, ASCII-coded format for memory dumps
SST2 - Cadence proprietary format to store mixed-signal simulation results/waveforms
STIL – Standard Test Interface Language, IEEE1450-1999 standard for Test Patterns for IC
SV – SystemVerilog source file
S*P – Touchstone/EEsof Scattering parameter data file – multi-port blackbox performance, measurement or simulated
UPF – Standard for Power-domain specification in SoC implementation
V – Verilog source file
VCD – Standard format for digital simulation waveform
VHD, VHDL – VHDL source file
WGL – Waveform Generation Language, format for Test Patterns for IC
Test technology[edit]
Files output from Automatic Test Equipment or post-processed from such.
Database[edit]
4DB – 4D database Structure file
4DD – 4D database Data file
4DIndy – 4D database Structure Index file
4DIndx – 4D database Data Index file
4DR – 4D database Data resource file (in old 4D versions)
ACCDB – Microsoft Database (Microsoft Office Access 2007 and later)
ACCDE – Compiled Microsoft Database (Microsoft Office Access 2007 and later)
ADT – Sybase Advantage Database Server (ADS)
APR – Lotus Approach data entry & reports
BOX – Lotus Notes Post Office mail routing database
CHML – Krasbit Technologies Encrypted database file for 1 click integration between contact management software and the chameleon(tm) line of imaging workflow solutions
DAF – Digital Anchor data file
DAT – DOS Basic
DAT – Intersystems Caché database file
DB – Paradox
DB – SQLite
DBF – db/dbase II,III,IV and V, Clipper, Harbour/xHarbour, Fox/FoxPro, Oracle
DTA – Sage Sterling database file
EGT – EGT Universal Document, used to compress sql databases to smaller files, may contain original EGT database style.
ESS – EGT SmartSense is a database of files and its compression style. Specific to EGT SmartSense
EAP – Enterprise Architect Project
FDB – Firebird Databases
FDB – Navision database file
FP, FP3, FP5, and FP7 – FileMaker Pro
FRM – MySQL table definition
GDB – Borland InterBase Databases
GTABLE – Google DriveFusion Table
KEXI – Kexi database file (SQLite-based)
KEXIC – shortcut to a database connection for a Kexi databases on a server
KEXIS – shortcut to a Kexi database
LDB – Temporary database file, only existing when database is open
MDA – Add-in file for Microsoft Access
MDB – Microsoft Access database
ADP – Microsoft Access project (used for accessing databases on a server)
WMDB – Windows Media Database file – The CurrentDatabase_360.wmdb file can contain file name, file properties, music, video, photo and playlist information.
XCF – File format used by the GIMP, as well as other programs
Document[edit]
These files store formatted text and plain text.
0 – Plain Text Document, normally used for licensing
1ST – Plain Text Document, normally preceded by the words 'README' (README.1ST)
600 – Plain Text Document, used in UNZIP history log
602 – Text602 document
ABW – AbiWord document
ACL – MS Word AutoCorrect List
AFP – Advanced Function Presentation – IBc
AMI – Lotus Ami Pro
ANS – American National Standards Institute (ANSI) text
ASC – ASCII text
AWW – Ability Write
CCF – Color Chat 1.0
CSV – ASCII text as comma-separated values, used in spreadsheets and database management systems
CWK – ClarisWorks-AppleWorks document
DBK – DocBook XML sub-format
DITA – Darwin Information Typing Architecture document
DOC – Microsoft Word document
DOCM – Microsoft Word macro-enabled document
DOCX – Office Open XML document
DOT – Microsoft Word document template
DOTX – Office Open XML text document template
DWD – DavkaWriter Heb/Eng word processor file
EGT – EGT Universal Document
EPUB – EPUB open standard for e-books
EZW – Reagency Systems easyOFFER document[6]
FDX – Final Draft
FTM – Fielded Text Meta
FTX – Fielded Text (Declared)
GDOC – Google Drive Document
HTML – HyperText Markup Language (.html, .htm)
HWP – Haansoft (Hancom) Hangul Word Processor document
HWPML – Haansoft (Hancom) Hangul Word Processor Markup Language document
LOG – Text log file
LWP – Lotus Word Pro
MBP – metadata for Mobipocket documents
MD – Markdown text document
ME – Plain text document normally preceded by the word 'READ' (READ.ME)
MCW – Microsoft Word for Macintosh (versions 4.0–5.1)
Mobi – Mobipocket documents
NB – Mathematica Notebook
nb - Nota Bene Document (Academic Writing Software)
NBP – Mathematica Player Notebook
NEIS – 학교생활기록부 작성 프로그램 (Student Record Writing Program) Document
ODM – OpenDocument master document
ODOC - Synology Drive Office Document
ODT – OpenDocument text document
OSHEET - Synology Drive Office Spreadsheet
OTT – OpenDocument text document template
OMM – OmmWriter text document
PAGES – Apple Pages document
PAP – Papyrus word processor document
PDAX – Portable Document Archive (PDA) document index file
PDF – Portable Document Format
QUOX – Question Object File Format for Quobject Designer or Quobject Explorer
RTF – Rich Text document
RPT – Crystal Reports
SDW – StarWriter text document, used in earlier versions of StarOffice
SE – Shuttle Document
STW – OpenOffice.org XML (obsolete) text document template
Sxw – OpenOffice.org XML (obsolete) text document
TeX – TeX
INFO – Texinfo
TXT – ASCII or Unicodeplain text file
UOF – Uniform Office Format
UOML – Unique Object Markup Language
VIA – Revoware VIA Document Project File
WPD – WordPerfect document
WPS – Microsoft Works document
WPT – Microsoft Works document template
WRD – WordIt! document
WRF – ThinkFree Write
WRI – Microsoft Write document
XHTML (xhtml, xht) – eXtensible HyperText Markup Language
XML – eXtensible Markup Language
XPS – Open XML Paper Specification
Financial records[edit]
MYO – MYOB Limited (Windows) File
MYOB – MYOB Limited (Mac) File
TAX – TurboTax File
YNAB – You Need a Budget (YNAB) File
Financial data transfer formats[edit]
Interactive Financial Exchange (IFX) – XML-based specification for various forms of financial transactions
Open Financial Exchange (.ofx) – open standard supported by CheckFree and Microsoft and partly by Intuit; SGML and later XML based
QFX – proprietary pay-only format used only by Intuit
Quicken Interchange Format (.qif) – open standard formerly supported by Intuit
Font file[edit]
ABF – Adobe Binary Screen Font
AFM – Adobe Font Metrics
BDF – Bitmap Distribution Format
BMF – ByteMap Font Format
FNT – Bitmapped Font – Graphics Environment Manager (GEM)
FON – Bitmapped Font – Microsoft Windows
MGF – MicroGrafx Font
OTF – OpenType Font
PCF – Portable Compiled Format
PostScript Font – Type 1, Type 2
PFA – Printer Font ASCII
PFB – Printer Font Binary – Adobe
PFM – Printer Font Metrics – Adobe
AFM – Adobe Font Metrics
FOND – Font Description resource – Mac OS
SFD – FontForge spline font database Font
SNF – Server Normal Format
TDF – TheDraw Font
TFM – TeX font metric
TTF (.ttf, .ttc) – TrueType Font
UFO – Unified Font Object is a cross-platform, cross-application, human readable, future proof format for storing font data.
WOFF – Web Open Font Format
Geographic information system[edit]
ASC – ASCII point of interest (POI) text file
APR – ESRI ArcView 3.3 and earlier project file
DEM – USGS DEM file format
E00 – ARC/INFO interchange file format
GeoJSON –Geographically located data in object notation
GeoTIFF – Geographically located raster data
GML – Geography Markup Language file[7]
GPX – XML-based interchange format
ITN – TomTom Itinerary format
MXD – ESRI ArcGIS project file, 8.0 and higher
NTF – National Transfer Format file
OV2 – TomTom POI overlay file
SHP – ESRI shapefile
TAB – MapInfo Table file format
World TIFF – Geographically located raster data: text file giving corner coordinate, raster cells per unit, and rotation
DTED – Digital Terrain Elevation Data
KML – Keyhole Markup Language, XML-based
Graphical information organizers[edit]
3DT – 3D Topicscape, the database in which the meta-data of a 3D Topicscape is held, it 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; used to permit round-trip (export Topicscape, change files and folders as desired, re-import to 3D Topicscape)
CAG – Linear Reference System
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)
MGMF – MindGenius Mind Mapping Software file format
MM – FreeMind mind map file (XML)
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 to 3D Topicscape)
Graphics[edit]
Color palettes[edit]
ACT – Adobe Color Table. Contains a raw color palette and consists of 256 24-bit RGB colour values.
ASE – Adobe Swatch Exchange. Used by Adobe Photoshop, Illustrator, and InDesign.[8]
GPL – GIMP palette file. Uses a text representation of color names and RGB values. Various open source graphical editors can read this format,[9] including GIMP, Inkscape, Krita,[10]KolourPaint, Scribus, CinePaint, and MyPaint.[11]
PAL – Microsoft RIFF palette file
Color management[edit]
ICC/ICM – Color profile conforming the specification of the ICC.
Raster graphics[edit]
Raster or bitmap files store images as a group of pixels.
ART – America Online proprietary format
BLP – Blizzard Entertainment proprietary texture format
BMP – Microsoft Windows Bitmap formatted image
BTI – Nintendo proprietary texture format
CD5 – Chasys Draw IES image
CIT – Intergraph is a monochrome bitmap format
CPT – Corel PHOTO-PAINT image
CR2 – Canon camera raw format; photos have this on some Canon cameras if the quality RAW is selected in camera settings
CLIP – CLIP STUDIO PAINT format
CPL - Windows control panel file
DDS – DirectX texture file
DIB – Device-Independent Bitmap graphic
DjVu – DjVu for scanned documents
EGT – EGT Universal Document, used in EGT SmartSense to compress PNG files to yet a smaller file
Exif – Exchangeable image file format (Exif) is a specification for the image format used by digital cameras
GIF – CompuServe's Graphics Interchange Format
GRF – Zebra Technologies proprietary format
ICNS – format for icons in macOS. Contains bitmap images at multiple resolutions and bitdepths with alpha channel.
ICO – a format used for icons in Microsoft Windows. Contains small bitmap images at multiple resolutions and bitdepths with 1-bit transparency or alpha channel.
IFF (.iff, .ilbm, .lbm) – ILBM
JNG – a single-frame MNG using JPEG compression and possibly an alpha channel
JPEG, JFIF (.jpg or .jpeg) – Joint Photographic Experts Group; a lossy image format widely used to display photographic images
JP2 – JPEG2000
JPS – JPEG Stereo
LBM – Deluxe Paint image file
MAX – ScanSoft PaperPort document
MIFF – ImageMagick's native file format
MNG – Multiple-image Network Graphics, the animated version of PNG
MSP – a format used by old versions of Microsoft Paint; replaced by BMP in Microsoft Windows 3.0
NITF – A U.S. Government standard commonly used in Intelligence systems
OTB – Over The Air bitmap, a specification designed by Nokia for black and white images for mobile phones
TIFF (.tif or .tiff) – Tagged Image File Format (usually lossless, but many variants exist, including lossy ones)
TIFF/EP (.tif or .tiff) – Tag Image File Format / Electronic Photography, ISO 12234-2; tends to be used as a basis for other formats rather than in its own right.
VTF – Valve Texture Format
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
ZIF – Zoomable/Zoomify Image Format (a web-friendly, TIFF-based, zoomable image format)
Vector graphics[edit]
Vector graphics use geometric primitives such as points, lines, curves, and polygons to represent images.
3DV – 3-D wireframe graphics by Oscar Garcia
AMF – Additive Manufacturing File Format
AWG – Ability Draw
AI – Adobe Illustrator Document
CGM – Computer Graphics Metafile, an ISO Standard
CDR – CorelDRAW Document
CMX – CorelDRAW vector image
DP - Drawing Program file for PERQ[12]
DXF – ASCII Drawing Interchange file Format, used in AutoCAD and other CAD-programs
E2D – 2-dimensional vector graphics used by the editor which is included in JFire
EGT – EGT Universal Document, EGT Vector Draw images are used to draw vector to a website
EPS – Encapsulated Postscript
FS – FlexiPro file
GBR – Gerber file
ODG – OpenDocument Drawing
SVG – Scalable Vector Graphics, employs XML
Scene description languages (3D vector image formats)
STL – Stereo Lithographic data format (see STL (file format)) used by various CAD systems and stereo lithographic printing machines. See above.
VRML Uses .wrl extension – Virtual Reality Modeling Language, for the creation of 3D viewable web images.
SXD – OpenOffice.org XML (obsolete) Drawing
V2D – voucher design used by the voucher management included in JFire
VDOC – Vector format used in AnyCut, CutStorm, DrawCut, DragonCut, FutureDRAW, MasterCut, SignMaster, VinylMaster software by Future Corporation
VSD – Vector format used by Microsoft Visio
VSDX – Vector format used by MS Visio and opened by VSDX Annotator
VND – Vision numeric Drawing file used in TypeEdit, Gravostyle.
WMF – Windows Meta File
EMF – Enhanced (Windows) MetaFile, an extension to WMF
ART – Xara – Drawing (superseded by XAR)
XAR – Xara – Drawing
3D graphics[edit]
3D graphics are 3D models that allow building models in real-time or non real-time 3D rendering.
3DMF – QuickDraw 3D Metafile (.3dmf)
3DM – OpenNURBS Initiative 3D Model (used by Rhinoceros 3D) (.3dm)
3MF – Microsoft 3D Manufacturing Format (.3mf)[3]
3DS – legacy 3D Studio Model (.3ds)
ABC – Alembic (computer graphics)
AC – AC3D Model (.ac)
AMF – Additive Manufacturing File Format
AN8 – Anim8or Model (.an8)
AOI – Art of Illusion Model (.aoi)
ASM – PTC Creo assembly (.asm)
B3D – Blitz3D Model (.b3d)
BLEND – Blender (.blend)
BLOCK – Blender encrypted blend files (.block)
BMD3 – NintendoGameCube first-party J3D proprietary model format (.bmd)
BDL4 – NintendoGameCube and Wii first-party J3D proprietary model format (2002, 2006–2010) (.bdl)
BRRES – NintendoWii first-party proprietary model format 2010+ (.brres)
BFRES - NintendoWii U and later Switch first-party proprietary model format
CORE3D – Coreona 3D Coreona 3D Virtual File(.core3d)
CTM – OpenCTM (.ctm)
DAE – COLLADA (.dae)
DFF – RenderWare binary stream, commonly used by Grand Theft Auto III-era games as well as other RenderWare titles
DPM – deepMesh (.dpm)
DTS – Torque Game Engine (.dts)
EGG – Panda3D Engine
FACT – Electric Image (.fac)
FBX – Autodesk FBX (.fbx)
G – BRL-CAD geometry (.g)
GLB – a binary form of glTF required to be loaded in Facebook 3D Posts. (.glb)
GLM – Ghoul Mesh (.glm)
glTF – the JSON standard developed by Khronos Group (.gltf)
IOB – Imagine (3D modeling software) (.iob)
JAS – Cheetah 3D file (.jas)
LWO – Lightwave Object (.lwo)
LWS – Lightwave Scene (.lws)
LXF – LEGO Digital Designer Model file (.lxf)
LXO – Luxology Modo (software) file (.lxo)
MA – Autodesk Maya ASCII File (.ma)
MAX – Autodesk 3D Studio Max file (.max)
MB – Autodesk Maya Binary File (.mb)
MD2 – Quake 2 model format (.md2)
MD3 – Quake 3 model format (.md3)
MD5 – Doom 3 model format (.md5)
MDX – Blizzard Entertainment's own model format (.mdx)
MESH – New York University(.m)
MESH – Meshwork Model (.mesh)
MM3D – Misfit Model 3d (.mm3d)
MPO – Multi-Picture Object – This JPEG standard is used for 3d images, as with the Nintendo 3DS
MRC – voxels in cryo-electron microscopy
NIF – Gamebryo NetImmerse File (.nif)
OBJ – Wavefront .obj file (.obj)
OFF – OFF Object file format (.off)
OGEX – Open Game Engine Exchange (OpenGEX) format (.ogex)
PLY – Polygon File Format / Stanford Triangle Format (.ply)
PRC – Adobe PRC (embedded in PDF files)
PRT – PTC Creo part (.prt)
POV – POV-Ray document (.pov)
R3D – Realsoft 3D (Real-3D) (.r3d)
RWX – RenderWare Object (.rwx)
SIA – Nevercenter Silo Object (.sia)
SIB – Nevercenter Silo Object (.sib)
SKP – Google Sketchup file (.skp)
SLDASM – SolidWorks Assembly Document (.sldasm)
SLDPRT – SolidWorks Part Document (.sldprt)
SMD – Valve Studiomdl Data format (.smd)
U3D – Universal 3D format (.u3d)
USD - Universal Scene Description (.usd)
USDA - Universal Scene Description , Human-readable text format (.usda)
USDC - Universal Scene Description , Binary format (.usdc)
USDZ - Universal Scene Description Zip (.usdz)
VIM – Revizto visual information model format (.vimproj)
VRML97 – VRML Virtual reality modeling language (.wrl)
VUE – Vue scene file (.vue)
VWX – Vectorworks (.vwx)
WINGS – Wings3D (.wings)
W3D – Westwood 3D Model (.w3d)
X – DirectX 3D Model (.x)
X3D – Extensible 3D (.x3d)
Z3D – Zmodeler (.z3d)
Links and shortcuts[edit]
JNLP – Java Network Launching Protocol, an XML file used by Java Web Start for starting Java applets over the Internet
LNK – binary-format file shortcut in Microsoft Windows 95 and later
APPREF-MS – File shortcut format used by ClickOnce
URL – INI file pointing to a URLbookmarks/Internet shortcut in Microsoft Windows
WEBLOC - Property list file pointing to a URLbookmarks/Internet shortcut in macOS
SYM – Symbolic link
.desktop – Desktop entry on LinuxDesktop environments
Mathematical[edit]
Harwell-Boeing file format – a format designed to store sparse matrices
MML – MathML – Mathematical Markup Language
ODF – OpenDocument Math Formula
SXM – OpenOffice.org XML (obsolete) Math Formula
Object code, executable files, shared and dynamically linked libraries[edit]
.8BF files – plugins for some photo editing programs including Adobe Photoshop, Paint Shop Pro, GIMP and Helicon Filter.
.a – Objective C native static library
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
APK – Android Application Package
APP – A folder found on macOS systems containing program code and resources, appearing as one file.
BAC – an executable image for the RSTS/E system, created using the BASIC-PLUSCOMPILE command[13]
BPL – a Win32 PE file created with Borland Delphi or C++Builder containing a package.
Bundle – a Macintosh plugin created with Xcode or make which holds executable code, data files, and folders for that code.
.Class – 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 – commands used in DOS
DCU – Delphi compiled unit
DLL - library used in Windows and OS/2 to store data, resources and code.
DOL – the format used by the GameCube and Wii, short for Dolphin, which was the codename of the GameCube.
.EAR – 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)
expander (see bundle)
DOS executable (.exe – used in DOS)
.IPA – apple IOS application executable file. Another form of zip file.
JEFF – a file format allowing execution directly from static memory[14]
.JAR – archives of Java class files
.XPI – PKZIP archive that can be run by Mozillaweb browsers to install software.
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 macOS, iOS, watchOS, and tvOS
NetWare Loadable Module (.NLM) – the native 32-bit binaries compiled for Novell's NetWare Operating System (versions 3 and newer)
New Executable (.EXE – used in multitasking ('European') MS-DOS 4.0, 16-bitMicrosoft Windows, and OS/2)
.o – un-linked object files directly from the compiler
Obb – a file that developers create along with some APK packages to support the application.
Portable Executable (.EXE, – used in Microsoft Windows and some other systems)
Preferred Executable Format – (classic Mac OS for PowerPC applications; compatible with macOS via a classic (Mac OS X) emulator)
RLL – used in Microsoft operating systems together with a DLL file to store program resources
.s1es – Executable used for S1ES learning system.
.so – shared library, typically ELF
Value Added Process (.VAP) – the native 16-bit binaries compiled for Novell's NetWare Operating System (version 2, NetWare 286, Advanced NetWare, etc.)
.WAR – archives of Java Web applications
XBE – Xbox executable
.XAP – Windows Phone package
XCOFF – (no suffix for executable image, .o for object files, .a for shared object files) extended COFF, used in AIX
XEX – Xbox 360 executable
Object extensions
.VBX – Visual Basic extensions
.OCX – Object Control extensions
.TLB – Windows Type Library
Page description language[edit]
DVI – Device independent format
EGT – Universal Document can be used to store CSS type styles (*.egt)
PDF – Portable Document Format
PostScript (.ps, .ps.gz)
SNP – Microsoft Access Report Snapshot
Configurations, Metadata
CSS – Cascading Style Sheets
XSLT, XSL – XML Style Sheet (.xslt, .xsl)
TPL – Web template (.tpl)
Personal information manager[edit]
MSG – Microsoft Outlook task manager
ORG – Lotus Organizer PIM package
PST, OST – Microsoft Outlook email communication
SC2 – Microsoft Schedule+ calendar
Presentation[edit]
GSLIDES – Google Drive Presentation
KEY, KEYNOTE – Apple Keynote Presentation
NB – Mathematica Slideshow
NBP – Mathematica Player slideshow
ODP – OpenDocument Presentation
OTP – OpenDocument Presentation template
PEZ – Prezi Desktop Presentation
POT – Microsoft PowerPoint template
PPS – Microsoft PowerPoint Show
PPT – Microsoft PowerPoint Presentation
PPTX – Office Open XML Presentation
PRZ – Lotus Freelance Graphics
SDD – StarOffice's StarImpress
SHF – ThinkFree Show
SHOW – Haansoft(Hancom) Presentation software document
SHW – Corel Presentations slide show creation
SLP – Logix-4D Manager Show Control Project
SSPSS – SongShow Plus Slide Show
STI – OpenOffice.org XML (obsolete) Presentation template
SXI – OpenOffice.org XML (obsolete) Presentation
THMX – Microsoft PowerPoint theme template
WATCH – Dataton Watchout Presentation
Project management software[edit]
MPP – Microsoft Project
Reference management software[edit]
Formats of files used for bibliographic information (citation) management.
bib – BibTeX
enl – EndNote
ris – Research Information Systems RIS (file format)
Scientific data (data exchange)[edit]
FITS (Flexible Image Transport System) – standard data format for astronomy (.fits)
Silo – a storage format for visualization developed at Lawrence Livermore National Laboratory
SPC – spectroscopic data
EAS3 – binary format for structured data
EOSSA – Electro-Optic Space Situational Awareness format
OST (Open Spatio-Temporal) – extensible, mainly images with related data, or just pure data; meant as an open alternative for microscope images
HITRAN – spectroscopic data with one optical/infrared transition per line in the ASCII file (.hit)
.root – hierarchical platform-independent compressed binary format used by ROOT
Simple Data Format (SDF) – a platform-independent, precision-preserving binary data I/O format capable of handling large, multi-dimensional arrays.
MYD - Everfine LEDSpec software file for LED measurements
Multi-domain[edit]
NetCDF – Network common data format
HDR, [HDF], h4 or h5 – Hierarchical Data Format
SDXF – (Structured Data Exchange Format)
CDF – Common Data Format
CGNS – CFD General Notation System
FMF – Full-Metadata Format
Meteorology[edit]
GRIB – Grid In Binary, WMO format for weather model data
BUFR – WMO format for weather observation data
PP – UK Met Office format for weather model data
NASA-Ames – Simple text format for observation data. First used in aircraft studies of the atmosphere.
Chemistry[edit]
CML – Chemical Markup Language (CML) (.cml)
Chemical table file (CTab) (.mol, .sd, .sdf)
Joint Committee on Atomic and Molecular Physical Data (JCAMP) (.dx, .jdx)
Simplified molecular input line entry specification (SMILES) (.smi)
Mathematics[edit]
graph6, sparse6 – ASCII encoding of Adjacency matrices (.g6, .s6)
Biology[edit]
Molecular biology and bioinformatics:
AB1 – In DNA sequencing, chromatogram files used by instruments from Applied Biosystems
ACE – A sequence assembly format
ASN.1– Abstract Syntax Notation One, is an International Standards Organization (ISO) data representation format used to achieve interoperability between platforms. NCBI uses ASN.1 for the storage and retrieval of data such as nucleotide and protein sequences, structures, genomes, and PubMed records.
BAM – Binary Alignment/Map format (compressed SAM format)
BCF – Binary compressed VCF format
BED – The browser extensible display format is used for describing genes and other features of DNA sequences
CAF – Common Assembly Format for sequence assembly
CRAM – compressed file format for storing biological sequences aligned to a reference sequence
EMBL – The flatfile format used by the EMBL to represent database records for nucleotide and peptide sequences from EMBL databases
FASTA – The FASTA format, for sequence data. Sometimes also given as FNA or FAA (Fasta Nucleic Acid or Fasta Amino Acid).
FASTQ – The FASTQ format, for sequence data with quality. Sometimes also given as QUAL.
GCPROJ – The Genome Compiler project. Advanced format for genetic data to be designed, shared and visualized.
GenBank – The flatfile format used by the NCBI to represent database records for nucleotide and peptide sequences from the GenBank and RefSeq databases
GFF – The General feature format is used to describe genes and other features of DNA, RNA, and protein sequences
GTF – The Gene transfer format is used to hold information about gene structure
NCBI ASN.1 – Structured ASN.1 format used at National Center for Biotechnology Information for DNA and protein data
NEXUS – The Nexus file encodes mixed information about genetic sequence data in a block structured format
NeXML–XML format for phylogenetic trees
NWK – The Newick tree format is a way of representing graph-theoretical trees with edge lengths using parentheses and commas and useful to hold phylogenetic trees.
PDB – structures of biomolecules deposited in Protein Data Bank, also used to exchange protein and nucleic acid structures
PHD – Phred output, from the basecalling software Phred
PLN – Protein Line Notation used in proteax softwarespecification
SAM – Sequence Alignment/Map format, in which the results of the 1000 Genomes Project will be released
SBML – The Systems Biology Markup Language is used to store biochemical network computational models
SCF – Staden chromatogram files used to store data from DNA sequencing
SFF – Standard Flowgram Format
SRA – format used by the National Center for Biotechnology Information Short Read Archive to store high-throughput DNA sequence data
Stockholm – The Stockholm format for representing multiple sequence alignments
Swiss-Prot – The flatfile format used to represent database records for protein sequences from the Swiss-Prot database
VCF – Variant Call Format, a standard created by the 1000 Genomes Project that lists and annotates the entire collection of human variants (with the exception of approximately 1.6 million variants).
Biomedical imaging[edit]
Digital Imaging and Communications in Medicine (DICOM) (.dcm)
PS1XML – Windows PowerShell format and type definitions
PSC1 – Windows PowerShell console file
PSD1 – Windows PowerShell data file
PSM1 – Windows PowerShell module file
PY – Python
PYC – Python byte code files
PYO – Python
R – R scripts
r – REBOL scripts
RB – Ruby
RDP – RDP connection
red – Red scripts
RS – Rust (programming language)
SB2 – Scratch
SCPT – Applescript
SCPTD – See SCPT.
SDL – State Description Language
SH – Shell script
SYJS – SyMAT JavaScript
SYPY – SyMAT Python
TCL – Tcl
TNS - Ti-Nspire Code/File
VBS – Visual Basic Script
XPL – XProc script/pipeline
ebuild – Gentoo linux's portage package.
Security[edit]
Authentication and general encryption formats are listed here.
OpenPGP Message Format – used by Pretty Good Privacy, GNU Privacy Guard, and other OpenPGP software; can contain keys, signed data, or encrypted data; can be binary or text ('ASCII armored')
Certificates and keys[edit]
GXK – Galaxkey, an encryption platform for authorized, private and confidential email communication[citation needed]
OpenSSH private key (.ssh) – Secure Shellprivate key; format generated by ssh-keygen or converted from PPK with PuTTYgen[15][16][17]
OpenSSH public key (.pub) – Secure Shellpublic key; format generated by ssh-keygen or PuTTYgen[15][16][17]
PuTTY private key (.ppk) – Secure Shellprivate key, in the format generated by PuTTYgen instead of the format used by OpenSSH[15][16][17]
STC – OpenOffice.org XML (obsolete) Spreadsheet template
SXC – OpenOffice.org XML (obsolete) Spreadsheet
TAB – tab delimited columns; also TSV (Tab-Separated Values)
TXT – text file
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 (97–2003)
XLSB – Microsoft Excel binary workbook
XLSM – Microsoft Excel Macro-enabled workbook
XLSX – Office Open XML worksheet sheet
XLR – Microsoft Works version 6.0
XLT – Microsoft Excel worksheet template
XLTM – Microsoft Excel Macro-enabled worksheet template
XLW – Microsoft Excel worksheet workspace (version 4.0)
Tabulated data[edit]
TSV – Tab-separated values
CSV – Comma-separated values
db – databank format; accessible by many econometric applications
dif – accessible by many spreadsheet applications
Video[edit]
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 – container (enables any form of compression to be used; MPEG-4 is common; video in ASF-containers is also called Windows Media Video (WMV))
AVCHD – Advanced Video Codec High Definition
AVI – container (a shell, which enables any form of compression to be used)
BIK (.bik) – Bink Video file. A video compression system developed by RAD Game Tools
CAM – aMSN webcam log file
COLLAB – Blackboard Collaborate session recording
DAT – video standard data file (automatically created when we attempted to burn as video file on the CD)
DVR-MS – Windows XP Media Center Edition's Windows Media Center recorded television format
FLV – Flash video (encoded to run in a flash animation)
M1V MPEG-1 – Video
M2V MPEG-2 – Video
FLA – Macromedia Flash (for producing)
FLR – (text file which contains scripts extracted from SWF by a free ActionScript decompiler named FLARE)
SOL – Adobe Flash shared object ('Flash cookie')
M4V – video container file format developed by Apple
Matroska (*.mkv) – Matroska is a container format, which enables any video format such as MPEG-4 ASP or AVC 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
QuickTime (.mov) – container 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)
THP – Nintendo proprietary movie/video format
MPEG-4 Part 14, shortened 'MP4' – multimedia container (most often used for Sony's PlayStation Portable and Apple's iPod)
MXF – Material Exchange Format (standardized wrapper format for audio/visual material developed by SMPTE)
ROQ – used by Quake 3
NSV – Nullsoft Streaming Video (media container designed for streaming video content over the Internet)
Ogg – container, multimedia
RM – RealMedia
SVI – Samsung video format for portable players
SMI – SAMI Caption file (HTML like subtitle for movie files)
SMK (.smk) – Smacker video file. A video compression system developed by RAD Game Tools
SWF – Macromedia Flash (for viewing)
WMV – Windows Media Video (See ASF)
WTV – Windows Vista's and up Windows Media Center recorded television format
YUV – raw video format; resolution (horizontal x vertical) and sample structure 4:2:2 or 4:2:0 must be known explicitly
WebM – video file format for web video using HTML5
Video editing, production[edit]
BRAW – Blackmagic Design RAW video file name
FCP – Final Cut Pro project file
MSWMM – Windows Movie Maker project file
PPJ & PRPROJ– Adobe Premiere Pro video editing file
IMOVIEPROJ – iMovie project file
VEG & VEG-BAK – Sony Vegas project file
SUF – Sony camera configuration file (setup.suf) produced by XDCAM-EX camcorders
WLMP – Windows Live Movie Maker project file
KDENLIVE – Kdenlive project file
VPJ – VideoPad project file
MOTN – Apple Motion project file
IMOVIEMOBILE – iMovie project file for iOS users
Video game data[edit]
List of common file formats of data for video games on systems that support filesystems, most commonly PC games.
TrackMania United/Nations Forever Engine – Formats used by games based on the TrackMania engine.
XeX
CHALLENGE.GBX – (Edited) Challenge files.
CONSTRUCTIONCAMPAIGN.GBX – Construction campaigns files.
CONTROLEFFECTMASTER.GBX/CONTROLSTYLE.GBX – Menu parts.
FIDCACHE.GBX – Saved game.
GBX – Other TrackMania items.
REPLAY.GBX – Replays of races.
Doom engine – Formats used by games based on the Doom engine.
DEH – DeHackEd files to mutate the game executable (not officially part of the DOOM engine)
DSG – Saved game
LMP – A lump is an entry in a DOOM wad.
LMP – Saved demo recording
MUS – Music file (usually contained within a WAD file)
WAD – Data storage (contains music, maps, and textures)
Quake engine – Formats used by games based on the Quake engine.
BSP – (For Binary space partitioning) compiled map format
MAP – Raw map format used by editors like GtkRadiant or QuArK
MDL/MD2/MD3/MD5 – Model for an item used in the game
PAK/PK2 – Data storage
PK3/PK4 – used by the Quake II, Quake III Arena and Quake 4 game engines, respectively, to store game data, textures etc. They are actually .zip files.
.dat – not specific file type, often generic extension for 'data' files for a variety of applications
sometimes used for general data contained within the .PK3/PK4 files
.fontdat – a .dat file used for formatting game fonts
.roq – Video format
.sav – Savegame format
Unreal Engine – Formats used by games based on the Unreal engine.
U – Unreal script format
UAX – Animations format for Unreal Engine 2
UMX – Map format for Unreal Tournament
UMX – Music format for Unreal Engine 1
UNR – Map format for Unreal
UPK – Package format for cooked content in Unreal Engine 3
USX – Sound format for Unreal Engine 1 and Unreal Engine 2
UT2 – Map format for Unreal Tournament 2003 and Unreal Tournament 2004
UT3 – Map format for Unreal Tournament 3
UTX – Texture format for Unreal Engine 1 and Unreal Engine 2
UXX – Cache format; these are files a client downloaded from server (which can be converted to regular formats)
Duke Nukem 3D Engine – Formats used by games based on this engine
DMO – Save game
GRP – Data storage
MAP – Map (usually constructed with BUILD.EXE)
Diablo Engine – Formats used by Diablo by Blizzard Entertainment.
SV – Save Game
ITM – Item File
Real Virtuality Engine – Formats used by Bohemia Interactive. Operation:Flashpoint, ARMA 2, VBS2
SQF – Format used for general editing
SQM – Format used for mission files
PBO – Binarized file used for compiled models
LIP – Format that is created from WAV files to create in-game accurate lip-synch for character animations.
Source Engine - Formats used by Valve Software. Half-Life 2, Counter-Strike: Source, Day of Defeat: Source, Half-Life 2: Episode One, Team Fortress 2, Half-Life 2: Episode Two, Portal, Left 4 Dead, Left 4 Dead 2, Alien Swarm, Portal 2, Counter-Strike: Global Offensive, Titanfall, Insurgency, Titanfall 2, Day of Infamy
VMF - Valve Hammer Map editor raw map file
BSP - Source Engine compiled map file
MDL - Source Engine model format
SMD - Source Engine uncompiled model format
PCF - Source Engine particle effect file
HL2 - Half-Life 2 save format
DEM - Source Engine demo format
VPK - Source Engine pack format
VTF - Source Engine texture format
VMT - Source Engine material format.
Other Formats
B – used for Grand Theft Auto saved game files
BOL – used for levels on Poing!PC
DBPF – The Sims 2, DBPF, Package
DIVA – Project DIVA timings, element coördinates, MP3 references, notes, animation poses and scores.
ESM, ESP - Master and Plugin data archives for the Creation Engine
HE0, HE2, HE4 HE games File
GCF – format used by the Steam content management system for file archives
IMG – format used by Renderware-based Grand Theft Auto games for data storage
LOVE – format used by the LOVE2D Engine[24]
MAP – format used by Halo: Combat Evolved for archive compression, Doom³, and various other games
MCA – format used by Minecraft for storing data for in-game worlds[25]
MCADDON – format used by the Windows 10 Edition of Minecraft for add-ons
MCFUNCTION – format used by Minecraft for storing functions
MCMETA – format used by Minecraft for storing data for customizable texture packs for the game
MCPACK – format used by the Windows 10 Edition of Minecraft for in-game texture packs
MCR - format used by Minecraft for storing data for in-game worlds before version 1.2
MCTEMPLATE – format used by the Windows 10 Edition of Minecraft for world templates
MCWORLD – format used by the Windows 10 Edition of Minecraft for in-game worlds
NBT – format used by Minecraft for storing program variables along with their (Java) type identifiers
OEC – format used by OE-Cake for scene data storage
OSK – osu! compressed skin data
OSR – osu! replay data
OSU – osu! beatmap data
P3D – format for panda3d by Disney
POD – format used by Terminal Reality
RCT – Used for templates and save files in RollerCoaster Tycoon games
REP – used by Blizzard Entertainment for scenario replays in StarCraft.
Simcity 4, DBPF (.dat, .SC4Lot, .SC4Model) – All game plugins use this format, commonly with different file extensions
SMZIP – ZIP-based package for Stepmania songs, themes and announcer packs.
USLD – format used by Unison Shift to store level layouts.
VVVVVV – format used by VVVVVV[26]
CPS – format used by The Powder Toy, Powder Toy save
STM – format used by The Powder Toy, Powder Toy stamp
PKG – format used by Bungie for the PC Beta of Destiny 2, for nearly all the game's assets.
CHR - format used by Team Salvato, for the character files of Doki Doki Literature Club!
Z5 - format used by Z-machine for story files in interactive fiction.
Video game storage media[edit]
List of the most common filename extensions used when a game's ROM image or storage medium is copied from an original read-only memory (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 one file or ROM, rather an entire file or ROM structure contained within one file on the backup medium.[27]
LNK - MicrosoftWindows format for Hyperlinks to Executables
LSM – LSMaker script file (program using layered .jpg to create special effects; specifically designed to render lightsabers from the Star Wars universe) (.lsm)
NARC - Archive format used in Nintendo DS games.
OER – AU OER Tool, Open Educational Resource editor
PA – Used to assign sound effects to materials in KCL files (.pa)
PIF – Used to run MS-DOS programs under Windows
POR – So called 'portable' SPSS files, readable by PSPP
PXZ – Compressed file to exchange media elements with PSALMO
RISE – File containing RISE generated information model evolution
TOPC – TopicCrunch SEO Project file holding keywords, domain and search engine settings (ASCII);
TOS – Character file from The Only Sheet
XLF – Utah State University Extensible LADAR Format
XMC – Assisted contact lists format, based on XML and used in kindergartens and schools
ZED – My Heritage Family Tree
Zone file – a text file containing a DNS zone
Cursors[edit]
ANI – Animated cursor
CUR – Cursor file
Smes – Hawk's Dock configuration file
Generalized files[edit]
General data formats[edit]
These file formats are fairly well defined by long-term use or a general standard, but the content of each file is often highly specific to particular software or has been extended by further standards for specific uses.
Text-based[edit]
CSV – comma-separated values
HTML – hyper text markup language
CSS – cascading style sheets
INI – a configuration text file whose format is substantially similar between applications
JSON – JavaScript Object Notation is an openly used data format now used by many languages, not just JavaScript
TSV – tab-separated values
XML – an open data format
YAML – an open data format
ReStructuredText – an open text format for technical documents used mainly in the Python programming language
Markdown (.md) – an open lightweight markup language to create simple but rich text, often used to format README files
AsciiDoc – an open human-readable markup document format semantically equivalent to DocBook
Generic file extensions[edit]
These are filename extensions and broad types reused frequently with differing formats or no specific format by different programs.
Binary files[edit]
Bak file (.bak, .bk) – various backup formats: some just copies of data files, some in application-specific data backup formats, some formats for general file backup programs
BIN – binary data, often memory dumps of executable code or data to be re-used by the same software that originated it
DAT – data file, usually binary data proprietary to the program that created it
DSK – file representations of various disk storage images
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