Computer file extensions - S

Updated: 07/13/2023 by Computer Hope
S file extension

Below is a listing of each of the different file extensions that begin with the letter "S." If you are looking for a file extension that starts with a different letter, click the corresponding beginning letter below.

.SAV File that usually contains saved information such as a saved game.
.SC2 Maps used in Sim City 2000.
.SCP Dial-up Networking script file.
.SCR 1. Screen saver.
2. Source files for the .INI files.
.SCT Windows script component.
.SD Sound Designer I audio file.
.SD2 1. Sound Designer II flattened file.
2. Sound Designer II data fork file.
3. SAS database file.
.SDA 1. StarOffice drawing file.
2. SoftCuisine data archive.
.SDC StarOffice spreadsheet.
.SDD StarOffice presentation.
.SDF 1. Standard data format file.
2. Schedule data file.
3. System file format file.
4. Autodesk mapguide spatial data file.
.SDK Roland S-series floppy disk image.
.SDL SmartDraw library.
.SDN Small archive.
.SDR SmartDraw drawing.
.SDS StarOffice chart file and raw MIDI (musical instrument digital interface) sample dump standard file.
.SDT SmartDraw template.
.SDV Semicolon divided value file.
.SDW Sun Microsystems StarOffice file document file similar to the Microsoft Office .DOC file.
.SDX MIDI sample dump standard files compacted by SDX.
.SE Shuttle Lightweight markup language file.
.SEA Compressed file used with Apple Macintosh computers and Stuffit that is extracted and used with compression utilities.
.SFF Structured fax file.
.SFV Stores checksum data for an associated file, noting the type of data stored in the associated file.
.SFW Seattle Film Works file.
.SGI Silicon Graphics file.
.SH Archive file.
.SH3 Harvard (now Serif) presentation file.
.SHB 1. Corel background file.
2. Microsoft Shell scrap object.
.SHG Hotspot editor hypergraphic.
.SHK Apple Macintosh compressed archive file.
.SHM WordPerfect shell macro.
.SHP 3D Studio Shapes file and other 3D related files.
.SHR Archive file.
.SHS Shell scrap object file.
.SHTML See the SHTML definition.
.SHW 1. Corel presentation.
2. WordPerfect slide show.
3. Show file.
.SID LizardTech's SID wavelet file.
.SIT A compressed file used with Apple Macintosh computers and Stuffit that is extracted and used with compression utilities.
.SITX A compressed file used with Apple Macintosh computers and Stuffit that is extracted and used with compression utilities.
.SLK 1. Multiplan file.
2. Microsoft Excel symbolic link.
.SMIL A synchronized multimedia media file associated with Real Player.
.SND 1. Sound clip file.
2. AKAI MPC-series sample.
3. NeXT sound file.
4. Macintosh sound resource file.
5. Raw unsigned PCM data.
.SNG MIDI song.
.SNM Netscape mail file.
.SNO SNOBOL program file.
.SNP 1. Microsoft Access snapshot file
2. SQL (Structured Query Language) compare file
3. Snapview snapshot file.
.SPD A scalable font file.
.SPX OGG Speex sound file.
.SRF Digital camera RAW file format.
.SRT Contains subtitle information in the SubRip file format, and supported by DivX and DVD (digital versatile disc) video formats.
.STP 3-D assembly file, used to transfer 3-D graphics between CAD (computer-aided design) programs.
.SUM Summary file.
.SUN Sun raster graphic file.
.SVG CAD file.
.SWF Macromedia Flash file.
.SWP With Windows a .SWP is an extension used for the Windows swap file usually win386.swp. This file is required by Windows and can grow large in size sometimes up to several hundred megabytes. This file is used to swap information between currently running programs and memory. If this file is deleted from the computer Windows, it prevents Windows from loading and would require a reinstall.

In Linux and with the VIM editor the .swp file extension is a temporary save for a file currently being edited. This file should be deleted automatically when the file is closed in VIM.
.SXC A StarOffice/OpenOffice spreadsheet file extension.
.SYS System and peripheral drivers.