This alphabetical list of filename extensions contains extensions of notable file formats used by multiple notable applications or services.

A–E

F–L

M–R

S

Ext.DescriptionUsed by
S assembler source code file Unix
S7I Seed7 library / include file Seed7 interpreter and compiler
SAIF[1] Spatial Archive and Interchange Format
SASS[2] Sass stylesheet language, indented-format
SAT ACIS ACIS .sat
SAV SPSS tabular data (binary) PSPP, SPSS
SB Scratch project Scratch
SB2 Scratch 2.0 project Scratch
SB3 Scratch 3.0 project Scratch
SBH Header ScriptBasic
SBV Superbase RDBMS form definition data Superbase (database)
SBX For experimental extensions to Scratch Used by scratchX (scratchx.org)
SCALA Scala source code file Scala (programming language)
SCM Scheme source code file
SCR Screen Protector file Windows Screen Protector
SCSS[2] Sass stylesheet language
SDF[3] SQL Server Compact database file Microsoft SQL Server Compact
SD7 Seed7 source file Seed7 interpreter and compiler
SDS Self Defining Structure provides for N-dimensional very large datasets using HHCode geographic information systems and relational database management systems
SDTS Spatial Data Transfer Standard
SEC Secret key ring file Pretty Good Privacy RSA System
SED Self extraction directive file IExpress
SEQ Video Tiertex video sequence
SF JAR Digital Signature
SFB Configuration file emacs
SFX SFX (self-extracting archives) script RAR
SH Unix shell script Unix shell interpreter
SHAR Shell self-extracting archive UNSHAR (Unix)
SHTM SSI-enabled HTM file Server Side Includes
SHTML SSI-enabled HTML file Server Side Includes
SHX Shape entities

ESRI shapefile

 AutoCAD

ArcGIS

SIG Signature file gpg, PopMail, ThunderByte AntiVirus
SL S-Lang source code file
SM SMALLTALK source code file
SMCLVL Secret Maryo Chronicles Level Secret Maryo Chronicles
SMK Smacker video Format (RAD Video)
SNO SNOBOL4 source code file
SO shared object, dynamically linked library Unix, Linux
SPF data SQR Portable Format
SPIFF[4] Still Picture Interchange File Format
SPIN Spin source file Parallax Propeller Microcontrollers
SPS SPSS program file (text) PSPP, SPSS
SPT SPITBOL source code file
SPV SPIR-V binary file Vulkan, Khronos Group
SPX[5][6] Ogg Speex bitstream Xiph.Org Foundation
SPZ Crestron SIMPL Windows compiled program (ZIP format) Crestron SIMPL Windows
SQL Structured Query Language Any SQL database
SSC Celestia Solar System Catalog file Celestia
SSC Stellarium Script Stellarium
ST SMALLTALK source code file Little Smalltalk
ST Structured text file
STC Celestia Star Catalog file Celestia
STC OpenOffice.org XML spreadsheet template OpenOffice.org Calc
STD OpenOffice.org XML drawing template OpenOffice.org Draw
STI OpenOffice.org XML presentation template OpenOffice.org Impress
STK[7] Stockholm multiple sequence alignment Bioinformatics tools eg HMMER, Xrate, Jalview
STL surface geometry of a three-dimensional object software by 3D Systems
STM SSI-enabled HTML file Server Side Includes
STO[7] Stockholm multiple sequence alignment Bioinformatics tools eg HMMER, Xrate, Jalview
STP Standard for the Exchange of Product Data universal format for CAD exchange per ISO 10303
STW OpenOffice.org XML text document template OpenOffice.org Writer
SUR Surface topography (in native "SURF" format) MountainsMap
SVC Represents the ServiceHost instance hosted by Internet Information Services Windows Communication Foundation
SVG Scalable Vector Graphics
SWF[8] Shockwave Flash Macromedia, Adobe Flash Player
SWG SWIG source code SWIG
SWIFT Swift source code Swift (programming language)
SWM split Windows Imaging Format ImageX, DISM, 7-Zip, wimlib
SXC OpenOffice.org XML spreadsheet OpenOffice.org Calc
SXD OpenOffice.org XML drawing OpenOffice.org Draw
SXG OpenOffice.org XML master document
SXI OpenOffice.org XML presentation OpenOffice.org Impress
SXM OpenOffice.org XML formula OpenOffice.org Calc
SXP 3DS Process file 3D Studio
SXW OpenOffice.org XML text document OpenOffice.org Writer
SYLK Symbolic Link (SYLK) file Windows
SYMBOLICLINK Replace file for a symbolic link Unix-like OSs

T

Ext.DescriptionUsed by
TAK Audio codec, Lossless audio file format Winamp (+Plugin), foobar2000 (+Plugin), Media Player Classic – BE
TAR tar archive tar and other file archivers with support
TAZ[9] tar archive compressed with compress tar and other file archivers with support
TB2[9] tar archive compressed with Bzip2 tar and other file archivers with support
TBZ[9]
TBZ2[9]
TC Theme Colour file Saturn CMS
TER Terragen heightmap file Terragen scenery generator
TGA Truevision Advanced Raster Graphics Adapter image
TGT Target configuration file Target active security software
TGZ[9] tar archive compressed with gzip tar and other file archivers with support
THM Thumbnail File GoPro, Android, some versions of iOS (Accessible via computer or Jailbreak, on User/Media/PhotoData/Metadata/DCIM)
TIF See TIFF
TIFF Tag Image File Format image
TLB[10] Type library A binary file with information about a COM or DCOM object so other applications can use it at runtime. Created by Visual C++ or Visual Studio. Used by many Windows applications.
TLZ[9] tar archive compressed with LZMA tar and other file archivers with support
TMP[11] Temporary file
TORRENT[12] Torrent file BitTorrent clients (various)
TS MPEG transport stream Video broadcasting, digital video cameras
TS[13] TypeScript
TSV[14] Tab-separated values
TTC TrueType Font collection
TTF TrueType Font file
TXZ[9] tar archive compressed with xz tar and other file archivers with support
TZ2[9] Same as TBZ
TZST[9] tar archive compressed with Zstandard

U

Ext.DescriptionUsed by
UI Espire source code file Geoworks UI Compiler Geos
UI Qt Designer's UI File Trolltech Qt Designer
UMP Umple UML Programming Language Format Umple
UNV Text file containing finite elements nodal coordinates and more See notes Originally used by SDRC for its I-deas software; a lot of simulation software use it today
UOS Uniform Office Format spreadsheet
UOT Uniform Office Format text
UPS ROM patch file
URL Remote file shortcut Microsoft Windows
USDZ Augmented Reality (AR) File Apple, Pixar
UST Vocal synthesis track data UTAU
UT! datafile uTorrent
UXF UML Exchange Format

V

Ext.DescriptionUsed by
V Coq source file
V Verilog source file
V4P vvvv patch vvvv
V64[15] ROM image from an N64 cartritge DoctorV64, Doctor V64 junior, Project 64 and other N64 emulators
VB Visual Basic .Net source file Visual Basic .NET
VBOX[16] virtual machine settings file (in XML format) VirtualBox
VBOX-EXTPACK[17] VirtualBox extension package VirtualBox
VBPROJ Visual Basic .Net project file Visual Basic .Net Express and Visual Studio 2003-2010 Project
VBR Visual Basic Custom Control file Visual Basic
VBS VBScript script file VBScript
VBX Visual Basic eXtension Visual Basic
VC6 Graphite – 2D and 3D drafting Ashlar-Vellum
VCLS VocaListener voice scanner file VocaListener Plug-in (Vocaloid3)
VDA Targa bitmap graphics many raster graphics editors
VDI Virtual Disk Image VirtualBox
VDW Visio web drawing Microsoft Visio
VDX Visio XML drawing Microsoft Visio
VFD Virtual Floppy Disk Windows Virtual PC (among others)
VI Virtual Instrument LabVIEW
VMCZ Hyper-V Exported Virtual Machine Microsoft
VMDK[18] Virtual Disk file VMware
VMG Nokia message file format Text Message Editor (Nokia PC Suite)
VOB[19][20] Video Object DVD-R, DVD-RW
VMX virtual machine configuration file VMware
VPK Valve package Source engine games
VPM Garmin Voice Processing Module
VPP Visual Paradigm Project Visual Paradigm for UML
VPR Vocal synthesizer track data Vocaloid 5
VQM Hardware description language Altera
VRB LateX Beamer file containing verbatim commands LaTeX Beamer
VRB Veeam reversed incremental backup archive Veeam software
VS Vellum Solids Ashlar-Vellum
VSD Visio drawing Microsoft Visio
VSDX[21] Visio drawing Microsoft Visio
VSM Visual Simulation Model VisSim
VSQ Vocal synthesizer track data Vocaloid 2
VSQx Vocal synthesizer track data Vocaloid 3, Vocaloid 4
VST Truevision Vista graphics many raster graphics editors
VSTO Microsoft Office add-in file Microsoft Visual Studio
VSVNBAK VisualSVN Server repository backup VisualSVN Server
VTF Valve Texture Format file[22] Valve Corporation
VUE Visual Understanding Environment map Visual Understanding Environment
VVVVVV VVVVVV map file VVVVVV

W

Ext.DescriptionUsed by
WAD Default package format for Doom that contains sprites, levels, and game data Doom and Doom II
WAV Sound format (Microsoft Windows RIFF WAVE) Media Player
WEBM Royalty-free video/audio container HTML5
WITNESS_CAMPAIGN Game save file for The Witness The Witness
WK1 Spreadsheet Lotus 1-2-3 version 2.x – Lotus Symphony 1.1+
WK3 Spreadsheet Lotus 1-2-3 version 3.x
WKS Spreadsheet Lotus 1-2-3 version 1A – Lotus Symphony 1.0, Microsoft Works
WLMP Windows Live Moviemaker Project, contains paths from where the images/audios/videos of the project are located Windows Live Movie Maker[23]
WMA Windows Media Audio file Advanced Systems Format
WMDB Windows Media Player database Windows Media Player
WMF Windows MetaFile vector graphics
WMV Windows Media Video file Advanced Systems Format
WOS WoS bibliographic reference file ISI/Clarivate Analytics
WTX Text document

X

Ext.DescriptionUsed by
X LEX source code file
X XBasic Source code file Xbasic
X3D x3d and xdart Formats
XAR Xara graphics file Files created by Xara Photo & Graphic Designer (formerly Xara Xtreme and Xara Studio); early versions used the extension ART
XAR eXtensible ARchive xar, 7-Zip
XBRL eXtensible Business Reporting Language instance file eXtensible Business Reporting Language
XCF Gimp image file GNU Image Manipulation Program
XDM Directory Manipulator for 32-bit Protected Mode Xenotech Research Labs
XE Xenon – for Associative 3D Modeling Ashlar-Vellum
XEX Xbox 360 Executable File
XLS[24] Microsoft Excel Spreadsheet Microsoft Excel
XLSB Microsoft Excel 2007 Binary Workbook (BIFF12)(Spreadsheets) Microsoft Excel 2007 (see Microsoft Office 2007 file extensions)
XLSM Microsoft Excel 2007 Macro-Enabled Workbook (Spreadsheets) Microsoft Excel 2007 (see Microsoft Office 2007 file extensions)
XLSX[25] Office Open XML Workbook (Spreadsheets) Microsoft Excel 2007 (see Microsoft Office 2007 file extensions)
XM FastTracker 2 extended module AWAVE, Mod4Win, FastTracker, ImpulseTracker
XML eXtensible Markup Language file
XMF eXtensible Music Format
XP eXtended Pattern FastTracker 2
XPL X-Plane system file Laminar Research
XPS Open XML Paper Specification / OpenXPS Open standard document format initially created by Microsoft and similar in concept to Adobe PDF files
XSD[26][27] XML schema description
XSF data Microsoft InfoPath file
XSL[28] XSL Stylesheet
XSLT[28] XSLT file
XSN Microsoft InfoPath template Microsoft InfoPath
XSPF XML Sharable Playlist Format
XX XX-encoded file (ASCII) XXDECODE
XXE XX-encoded file (ASCII) XXDECODE
XXX Singer Embroidery Format Embroidermodder
XYZ Molecular coordinates XMol, RasMol
XZ a lossless data compression file format incorporating the LZMA/LZMA2 compression algorithms. xz

Y

Ext.DescriptionUsed by
Y YACC grammar file Yacc/Bison
YML[29] YML markup file domain specific language output to XML
YAML[30] YAML source file YAML (data serialization language)

Z

Ext.DescriptionUsed by
ZIP[31] Zip (file format) PKZip – WinZip – Mac OS X
ZRX REXX scripting language for ZOC_(software) ZOC terminal emulator
ZS Script for Minecraft mod MineTweaker[32] and CraftTweaker[33] Minecraft Mods

See also

References

  1. ↑ "CGIS-SAIF Canadian geomatics interchange standard: spatial archive and interchange format: formal definition (release 3.2)". British Columbia Ministry of Environment & Climate Change Strategy. December 1992. Retrieved 2020-09-25.
  2. 1 2 "Syntax". sass-lang.com. Retrieved 2020-09-25.
  3. ↑ "SQL Server Compact and LINQ to SQL". Microsoft Docs. Retrieved 12 January 2021.
  4. ↑ "Overview of JPEG". jpeg.org. Retrieved 2020-09-27.
  5. ↑ "MIME Types and File Extensions". XiphWiki. 2009-10-04. Retrieved 2009-10-24.
  6. ↑ I. Goncalves; S. Pfeiffer; C. Montgomery (2008). Ogg Media Types. sec. 10. doi:10.17487/RFC5334. RFC 5334.
  7. 1 2 "Alignment Fileformats". 22 May 2019. Retrieved 22 May 2019.
  8. ↑ "SWF File Format Specification Version 10" (PDF). Archived from the original (PDF) on 2012-01-31. Retrieved 2012-02-26.
  9. 1 2 3 4 5 6 7 8 9 "GNU tar 1.32: 8.1 Using Less Space through Compression". GNU. 2019-02-23. Retrieved 2019-08-11.
  10. ↑ "COM, DCOM, and Type Libraries". Microsoft. 2020-05-31. Retrieved 2020-10-02.
  11. ↑ "What are temporary (.TMP) files and how do I delete them?". fileinfo.com. Retrieved 2020-12-18.
  12. ↑ "BEP-0003: The BitTorrent Protocol Specification". Bittorrent.org. Retrieved 2009-10-22.
  13. ↑ "TypeScript Documentation: The Basics".
  14. ↑ "Definition of tab-separated-values (tsv)". Internet Assigned Numbers Authority (IANA).
  15. ↑ "V64 File - What is a .v64 file and how do I open it?". fileinfo.com. Retrieved 2023-11-26.
  16. ↑ "Oracle VM VirtualBox User Manual, Chapter 10. Technical background". Oracle Corporation. Retrieved 28 December 2016.
  17. ↑ "Oracle VM VirtualBox User Manual, Chapter 1.5. Installing VirtualBox and extension packs". Oracle Corporation. Retrieved 28 December 2016.
  18. ↑ "Virtual Disk Format 5.0" (PDF). VMware. December 20, 2011.
  19. ↑ DVD FLLC (2009-02) DVD Book Construction – list of all available DVD Books, Retrieved on 2009-07-24
  20. ↑ DVD FLLC DVD Format Book – History of Supplements for DVD Books, Retrieved on 2009-07-24
  21. ↑ "Introduction to the Visio file format (.vsdx)". Microsoft. 2015-03-09. Retrieved 2020-11-04.
  22. ↑ "Valve Texture Format". developer.valvesoftware. Retrieved 2022-09-07.
  23. ↑ "WLMP File Extension – What is a .wlmp file and how do I open it?". fileinfo.com. Retrieved 2021-03-03.
  24. ↑ "[MS-XLS]: Excel Binary File Format (.xls) Structure". Microsoft. 2020-10-15. Retrieved 2020-11-04.
  25. ↑ "Excel (.xlsx) Extensions to the Office Open XML SpreadsheetML File Format". 2020-02-19. Retrieved 2020-08-29.
  26. ↑ "W3C XML Schema Definition Language (XSD) 1.1 Part 1: Structures". w3.org. 2012-04-05. Retrieved 2020-09-25.
  27. ↑ "W3C XML Schema Definition Language (XSD) 1.1 Part 2: Datatypes". w3.org. 2012-04-05. Retrieved 2020-09-25.
  28. 1 2 "The Extensible Stylesheet Language Family (XSL)". w3.org. 2017-09-09. Retrieved 2020-11-04.
  29. ↑ "YML – Why a Markup Language?!". fdik.org. 2019-11-02. Retrieved 2020-09-25.
  30. ↑ "YAML Ain't Markup Language (YAML) Version 1.2". YAML.org. Retrieved 2019-05-29.
  31. ↑ "ISO/IEC 21320-1:2015 Document Container File — Part 1: Core". ITTF. 2015.
  32. ↑ Hebben, Stan. "Tutorial:Introduction". Minetweaker 3. Retrieved 28 September 2014.
  33. ↑ "Crafttweaker Documentation". crafttweaker.readthedocs.io. Retrieved 2019-11-17.
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