List of filename extensions (S–Z)

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

Contents

* !$@
* 0-9
* A
* B
* C
* D
* E
* F
* G
* H
* I
* J
* K
* L
* M
* N
* O
* P
* Q
* R
* S
* T
* U
* V
* W
* X
* Y
* Z

* See also
* References

## A–E

[edit]

Main article: List of filename extensions (A–E)

## F–L

[edit]

Main article: List of filename extensions (F–L)

## M–R

[edit]

Main article: List of filename extensions (M–R)

## S

[edit]

Ext. | Description | Used by  |

|
|
|

S | assembler source code file  | Unix  |
S3M | Scream Tracker Module | Scream Tracker |
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 1.x 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  |
SDNN  | Encrypted Story Distiller Nursery Notes Database  | Story Distiller, Series Distiller  |
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  |
SERIES  | Encrypted Series Distiller database  | Series Distiller  |
SF | JAR Digital Signature  |  |
SFB | Configuration file  | emacs |
SFH  | backup file for Strike Force Heroes (SFH) on Steam[4] |  |
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

SIC | S.I.C.K. Source File  |  |
SIG | Signature file | gpg, PopMail, ThunderByte AntiVirus  |
SL | S-Lang source code file  |  |
SLDASM | SolidWorks assembly  | SolidWorks |
SLDPRT | SolidWorks part  | SolidWorks |
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[5] | 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[6][7] | Ogg Speex bitstream  | Xiph.Org Foundation |
SPZ | Crestron SIMPL Windows compiled program (ZIP format)  | Crestron SIMPL Windows  |
SQL | Structured Query Language | Any SQL database |
SRT | SubRip Subtitle file | Most media players |
SRX  | Series Distiller update XML file  | Series Distiller  |
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 |
STEP | Standard for the Exchange of Product Data | universal format for CAD exchange per ISO 10303  |
STI | OpenOffice.org XML presentation template  | OpenOffice.org Impress |
STK[8] | 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[8] | Stockholm multiple sequence alignment | Bioinformatics tools eg HMMER, Xrate, Jalview  |
STORY  | Encrypted Story Distiller database  | Story Distiller  |
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 |
STX  | Story Distiller update XML  | Story Distiller  |
SUR | Surface topography (in native "SURF" format)  | MountainsMap |
SVC | Represents the ServiceHost instance hosted by Internet Information Services | Windows Communication Foundation |
SVELTE  | Svelte source code  | Svelte |
SVG | Scalable Vector Graphics |  |
SWF[9] | 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

[edit]

Ext. | Description | Used 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[10] | tar archive compressed with compress | tar and other file archivers with support
TB2[10] | tar archive compressed with Bzip2 | tar and other file archivers with support
TBZ[10]
TBZ2[10]
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[10] | 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[11] | 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[10] | tar archive compressed with LZMA | tar and other file archivers with support
TMP[12] | Temporary file  |
TORRENT[13] | Torrent file | BitTorrent clients (various)
TQL | The quest lessons | TheQuest
TS | MPEG transport stream | Video broadcasting, digital video cameras
TS[14] | TypeScript |
TSCN | Godot Engine Text Scene file  | Godot Engine
TSV[15] | Tab-separated values |
TTC | TrueType Font collection  |
TTF | TrueType Font file  |
TWB | Tableau Software Workbook file  |
TXT | Text file  |
TXZ[10] | tar archive compressed with xz | tar and other file archivers with support
TZ2[10] | Same as TBZ
TZST[10] | tar archive compressed with Zstandard

## U

[edit]

Ext. | Description | Used 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 uses it today
UOS | Uniform Office Format spreadsheet  |
UOT | Uniform Office Format text  |
UPD  | Update file for Storage  |
UPS  | ROM patch file  |
URL | Remote file shortcut  | Microsoft Windows
USDZ  | Augmented Reality (AR) File  | Apple, Pixar
UST  | Vocal synthesis track data  | UTAU
USTX  | Vocal synthesis track data  | OpenUtau
UT! | datafile  | uTorrent
UXF  | UML Exchange Format  |

## V

[edit]

Ext. | Description | Used by

|
|

V | Coq source file  |
V | Verilog source file  |
V3  | Victoria 3 save game file  | Victoria 3
V4P | vvvv patch  | vvvv
V64[16] | ROM image from an N64 cartridge  | DoctorV64, Doctor V64 junior, Project 64 and other N64 emulators
VB | Visual Basic .Net source file  | Visual Basic .NET
VBOX[17] | virtual machine settings file (in XML format)  | VirtualBox
VBOX-EXTPACK[18] | 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
VC | VeraCrypt Disk Encrypted file  | Open Source VeraCrypt
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[19] | Virtual Disk file  | VMware
VMG | Nokia message file format  | Text Message Editor (Nokia PC Suite)
VOB[20][21] | 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[22] | 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[23] | Valve Corporation
VUE | Visual Understanding Environment map  | Visual Understanding Environment
VVVVVV  | VVVVVV map file  | VVVVVV

## W

[edit]

Ext. | Description | Used by

|
|

WAB | Global address book in versions of Microsoft Windows and shared by Microsoft apps such as Outlook and Outlook Express  | Outlook and Outlook Express
WAD | Default package format for Doom that contains sprites, levels, and game data  | Doom and Doom II
WAD | Package containing Wii Channel data, such as Virtual Console games. It is commonly used in homebrew to install custom channels, and can be installed with a WAD Manager  | Nintendo Wii
WAV | Sound format (Microsoft Windows RIFF WAVE)  | Media Player
WEBM | Royalty-free video/audio container  | HTML5
WIN  | Game code for GameMaker games  | GameMaker
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
WL  | Wolfram Language package[24][25] |
WLMP  | Windows Live Moviemaker Project, contains paths from where the images/audios/videos of the project are located  | Windows Live Movie Maker[26]
WLS  | Wolfram Script[27] | Wolfram Language
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
WPS  | Wii U plugin for aroma  | Aroma Environnement (Wii U)
WS  | Whitespace programming language, WonderSwan ROM[28] | Whitespace programming language, WonderSwan ROM
WSC  | WonderSwan Color ROM
WTX | Text document  |
WUHB  | Wii U Homebrew Bundle  | Aroma environnement (Wii U)

## X

[edit]

Ext. | Description | Used 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  |
XLR | Microsoft Works spreadsheet or chart file, very similar to Microsoft Excel's XLS  | Microsoft Works
XLS[29] | 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[30] | 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[31][32] | XML schema description  |
XSF | data  | Microsoft InfoPath file
XSL[33] | XSL Stylesheet  |
XSLT[33] | 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

[edit]

Ext. | Description | Used by

|
|

Y | YACC grammar file  | Yacc/Bison
YML[34] | YML markup file  | domain specific language output to XML
YAML[35] | YAML source file  | YAML (data serialization language)

## Z

[edit]

Ext. | Description | Used by

|
|

ZIP[36] | ZIP (file format) | PKZip – WinZip – Mac OS X
ZRX | REXX scripting language for ZOC_(software) | ZOC terminal emulator
ZS | Script for Minecraft mod MineTweaker[37] and CraftTweaker[38] | Minecraft Mods
ZST | ZStandard, a lossless data compression file format.  | zstd

## See also

[edit]

* List of filename extensions
* List of file formats

## References

[edit]

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. ^ a b "Syntax". sass-lang.com. Retrieved 2020-09-25.
3. ^ "SQL Server Compact and LINQ to SQL". Microsoft Docs. Retrieved 12 January 2021.
4. ^ "All my progress and stuff is gone. Why?". 2024-02-15.
5. ^ "Overview of JPEG". jpeg.org. Retrieved 2020-09-27.
6. ^ "MIME Types and File Extensions". XiphWiki. 2009-10-04. Retrieved 2009-10-24.
7. ^ I. Goncalves; S. Pfeiffer; C. Montgomery (2008). Ogg Media Types. sec. 10\. doi:10.17487/RFC5334. RFC 5334.
8. ^ a b "Alignment Fileformats". 22 May 2019. Retrieved 22 May 2019.
9. ^ "SWF File Format Specification Version 10" (PDF). Archived from the original (PDF) on 2012-01-31. Retrieved 2012-02-26.
10. ^ a b c d e f g h i "GNU tar 1.32: 8.1 Using Less Space through Compression". GNU. 2019-02-23. Retrieved 2019-08-11.
11. ^ "COM, DCOM, and Type Libraries". Microsoft. 2020-05-31. Retrieved 2020-10-02.
12. ^ "What are temporary (.TMP) files and how do I delete them?". fileinfo.com. Retrieved 2020-12-18.
13. ^ "BEP-0003: The BitTorrent Protocol Specification". Bittorrent.org. Retrieved 2009-10-22.
14. ^ "TypeScript Documentation: The Basics".
15. ^ "Definition of tab-separated-values (tsv)". Internet Assigned Numbers Authority (IANA).
16. ^ "V64 File - What is a .v64 file and how do I open it?". fileinfo.com. Retrieved 2023-11-26.
17. ^ "Oracle VM VirtualBox User Manual, Chapter 10. Technical background". Oracle Corporation. Retrieved 28 December 2016.
18. ^ "Oracle VM VirtualBox User Manual, Chapter 1.5. Installing VirtualBox and extension packs". Oracle Corporation. Retrieved 28 December 2016.
19. ^ "Virtual Disk Format 5.0" (PDF). VMware. December 20, 2011.
20. ^ DVD FLLC (2009-02) DVD Book Construction – list of all available DVD Books, Retrieved on 2009-07-24
21. ^ DVD FLLC DVD Format Book – History of Supplements for DVD Books, Retrieved on 2009-07-24
22. ^ "Introduction to the Visio file format (.vsdx)". Microsoft. 2015-03-09. Retrieved 2020-11-04.
23. ^ "Valve Texture Format". developer.valvesoftware. Retrieved 2022-09-07.
24. ^ "File ▶ New ▶ Package".
25. ^ "Create a Package File".
26. ^ "WLMP File Extension – What is a .wlmp file and how do I open it?". fileinfo.com. Retrieved 2021-03-03.
27. ^ "File ▶ New ▶ Script".
28. ^ "Whitespace Language - Online Decoder/Interpreter/Translator". www.dcode.fr. Retrieved 2024-04-25.
29. ^ "[MS-XLS]: Excel Binary File Format (.xls) Structure". Microsoft. 2020-10-15. Retrieved 2020-11-04.
30. ^ "Excel (.xlsx) Extensions to the Office Open XML SpreadsheetML File Format". 2020-02-19. Retrieved 2020-08-29.
31. ^ "W3C XML Schema Definition Language (XSD) 1.1 Part 1: Structures". w3.org. 2012-04-05. Retrieved 2020-09-25.
32. ^ "W3C XML Schema Definition Language (XSD) 1.1 Part 2: Datatypes". w3.org. 2012-04-05. Retrieved 2020-09-25.
33. ^ a b "The Extensible Stylesheet Language Family (XSL)". w3.org. 2017-09-09. Retrieved 2020-11-04.
34. ^ "YML – Why a Markup Language?!". fdik.org. 2019-11-02. Retrieved 2020-09-25.
35. ^ "YAML Ain't Markup Language (YAML) Version 1.2". YAML.org. Retrieved 2019-05-29.
36. ^ "ISO/IEC 21320-1:2015 Document Container File -- Part 1: Core". ITTF. 2015.
37. ^ Hebben, Stan. "Tutorial:Introduction". Minetweaker 3. Retrieved 28 September 2014.
38. ^ "Crafttweaker Documentation". crafttweaker.readthedocs.io. Retrieved 2019-11-17.

## External links

[edit]

* File Extension Resource
* The File Extensions Resource
* File information site
* File Extension Database
* File format finder
* List of file types