| Extension |
Meaning / Link |
| .S |
Assembler Source
Code |
| .S$$ |
Temporary Sort File |
| .S01 |
WordPerfect
Distribution File |
| .S02 |
WordPerfect
Distribution File |
| .S03 |
WordPerfect
Distribution File |
| .S2P |
Sonnet
File |
| .S3I |
ScreamTracker v3
Instrument |
| .S3M |
ScreamTracker v3
Module, ScreamTracker v3 Sound File |
| .SAH |
SETI@Home
Data File |
| .SAM |
Ami
Pro Text File, Signed 8-bit Sample Data |
| .SAN |
The Curse of Monkey
Island Movie File |
| .SAV |
Backup, Saved File |
| .SB |
Audio File, Raw
Signed Byte (8-bit) Data |
| .SBK |
Emu SoundFont v1.x
Bank Files, Creative Labs SB AWE 32 |
| .SBL |
Shockwave Flash
Object |
| .SBP |
Superbase DML
Program |
| .SC |
Framework
Screen Driver, Paradox Source Code, Ingres
Embedded SQL/C Source File |
| .SC2 |
Sample Cell, II PC
Instrument, Schedule+ File, SAS Catalog |
| .SC3 |
Harvard
Screen Driver (Harvard Graphics taken over by Serif) |
| .SCC |
Text File, Stamp
Collector's Girl Friday Catalog File, Source Safe File |
| .SCD |
Graphic (SCODL Scan
Conversion Object Description Language), Schedule+ File, TurboTax
Schedule File |
| .SCE |
SoftCuisine Data
Exchange File |
| .SCF |
Windows Explorer
Command |
| .SCH |
Schedule+ File, EAGLE
Schematic File, OrCad
Schematics File |
| .SCI |
ScanVec Inspire File |
| .SCL |
SCALA
Scale |
| .SCM |
SchematicMaker
(Topanga Software) File, ScreenCam Movie |
| .SCN |
Compressed Screen
format, TrueSpace2 Scene |
| .SCO |
High Score (various) |
| .SCP |
Script (various) |
| .SCR |
Faxview Fax, Screen
Saver, Procomm
Plus Screen Snapshot File, Script, LocoScript
Screen Font File |
| .SCT |
Foxpro
Screen, PC Tools Script Tools, Scitex Continuous Tone
Bitmap, SAS Catalog, Windows Script Component, Lotus
Screen Capture Text |
| .SCV |
ScanVec CASmate File |
| .SCX |
MS
FoxPro Screen File, Image File |
| .SD |
Sound Designer I
Audio |
| .SD2 |
Sound Designer II
Flattened File, Sound Designer II Data Fork, SAS Database |
| .SDA |
StarOffice Drawing,
SoftCuisine Data Archive |
| .SDC |
StarOffice
Spreadsheet |
| .SDD |
StarOffice
Presentation |
| .SDF |
Standard Data
Format, Schedule Data File, System File Format, Autodesk
MapGuide Spatial Data Files |
| .SDK |
Roland S-series
Floppy Disk Image, Autosketch Drawing |
| .SDL |
SmartDraw Library |
| .SDN |
Shell Archive |
| .SDR |
SmartDraw Drawing |
| .SDS |
StarOffice Chart,
Raw Midi Sample Dump Standard File |
| .SDT |
SmartDraw Template |
| .SDV |
Semicolon Divided
Values File |
| .SDW |
StarOffice Text, Raw
Signed DWord (32-bit) Data, Lotus
WordPro Graphic |
| .SDX |
Midi Sample Dump
Standard Files Compacted by SDX |
| .SEA |
Macintosh Compressed
Archive File |
| .SEC |
Compressed Archive
File, PGP Secret Key Ring |
| .SEG |
Compressed File
Segment |
| .SEL |
PaintShop
Pro Selection File |
| .SEP |
TIFF Bitmap
Separation |
| .SEQ |
Animation File,
Chromeleon Sequence List |
| .SES |
Digital Audio Editor
File |
| .SET |
Driver Set, Image
Settings, Backup File Set, Configuration (various) |
| .SEX |
Urban Chaos Game
File |
| .SF |
Sound File, OS/2
WPS Attribute Storage, IRCAM SoundFile |
| .SF2 |
Emu SoundFont v2.0
File, Creative Labs Soundfont 2.0 Bank File |
| .SFD |
SoundStage Sound
File Data |
| .SFI |
Ventura
Printer Font, SoundStage Sound File Info |
| .SFL |
Ventura
Printer Font, LaserJet Landscape Font |
| .SFP |
Ventura
Printer Font, LaserJet Portrait Font |
| .SFR |
Sonic Foundry Sample
Resource |
| .SFS |
StarOffice Frame,
PCL 5 Scalable Font |
| .SFT |
Chiwriter Screen
Font |
| .SFW |
Graphic File
(Seattle Film Works) |
| .SFX |
Self-extracting
Archive |
| .SGF |
Smart
Game Format |
| .SGI |
Graphic File |
| .SGL |
StarOffice Master
Document |
| .SGN |
Sierra
Print Artist Sign or
Sign data file from
AlignSign |
| .SH |
Archive File |
| .SH3 |
Harvard
Presentation (Harvard Graphics taken over by Serif) |
| .SHB |
Corel
Background File, Document Shortcut File |
| .SHH |
Shorthand language extension
(default shorthand application extension) |
| .SHG |
Hotspot Editor
Hypergraphic |
| .SHK |
Macintosh Compressed
Archive File |
| .SHL |
Shorthand language extension
(default function library extension) |
| .SHM |
WordPerfect
Shell Macro |
| .SHP |
3D
Studio Shapes File, 3D Modeling File (various) |
| .SHR |
Archive File |
| .SHS |
Shell Scrap Object
File |
| .SHW |
Corel
Presentation, WordPerfect Slide Show, Show File |
| .SI |
SoftImage Image File |
| .SIG |
Signature File |
| .SIK |
Backup File |
| .SIM |
Simulation |
| .SIT |
Macintosh Compressed
Archive File |
| .SIZ |
Oracle
7 Configuration |
| .SKA |
PGP Secret Keyring |
| .SKB |
QuickPOS
(Point-Of-Sale) Standard Keyboard Layout File |
| .SKL |
Authorware
Resource |
| .SKN |
FileWrangler/SecurDesk!/ImageForge
Graphic Skin, eRocket
eBook Skin |
| .SL |
S-Lang Program File,
PACT's Save Layout |
| .SLB |
AutoCAD
Slide Library |
| .SLC |
Telix Compiler SALT
Script |
| .SLD |
AutoCAD
Slide |
| .SLG |
Chromeleon Audit
Trail |
| .SLK |
Data Exchange File
(Symbolic Link) |
| .SLT |
Telix SALT Script
Application |
| .SM |
Smalltalk Program
File, Samna Word Text File |
| .SM3 |
DataCAD
Symbol File |
| .SMD |
StarOffice Mail |
| .SMF |
StarOffice Formula |
| .SMI |
RealPlay SMIL File |
| .SMK |
Smacker Compressed
File |
| .SMM |
Ami
Pro Macro |
| .SMP |
Sample or
Samplevision Format, Ad Lib Gold Sample |
| .SND |
Sound Clip, Raw
Unsigned PCM Data, AKAI MPC-series Sample, NeXT Sound,
Macintosh Sound Resource |
| .SNG |
MIDI Song |
| .SNM |
Netscape Mail |
| .SNO |
SNOBOL Program File |
| .SNP |
Shapshot file
(Snapview) |
| .SOU |
SB Studio II Sound |
| .SP |
Compressed Archive
File |
| .SPC |
Multiplan Program,
WordPerfect Temp File, SNES Audio file |
| .SPD |
Harvard
Bitstream Typefaces (Harvard Graphics taken over by Serif),
PostScript Printer, Mini-driver, Speech Data File, Speedo
Scalable Font |
| .SPG |
Sprint Glossary |
| .SPL |
Compressed Archive
File, Printer Spool File, Sprint Printer Driver, Sample File,
Spell Checker, Digitrakker
Sample (by n-FaCToR), Shockwave Flash Object |
| .SPM |
WordPerfect File |
| .SPN |
WordPerfect
Distribution File |
| .SPP |
Sprint Printer File |
| .SPR |
Sprint Document
Letter, Foxpro
Generated Screen Program |
| .SPS |
Sprint Screen Driver |
| .SPT |
SPITBOL Program File |
| .SPW |
SigmaPlot
Worksheet |
| .SPX |
Foxpro
Compiler Screen Program, Screen Peace Extension |
| .SQB |
SyQuest Backup |
| .SQC |
Structured Query
Language Common Code File |
| .SQL |
Structured Query
Language Data |
| .SQR |
Structured Query
Language Program File |
| .SQZ |
Compressed Archive
File |
| .SRC |
Sourcecode (various) |
| .SRF |
Sun Raster Graphic
File |
| .SSD |
SAS Database |
| .SSF |
Enable Spreadsheet
File |
| .SSI |
Installer/GD
Software Setup Information |
| .SSM |
RealPlay Standard
Streming Metafile |
| .SST |
Certificate Store |
| .ST |
SMALLTALK Program
File, Atari ST Disk Image, NeoPaint
Stamp File |
| .STA |
Eudora
File |
| .STB |
Genus
Stub Library |
| .STD |
State Transition
Diagram Graphic, SureThing CD Labeler Document, LocoScript
Standard Script File |
| .STF |
Compressed Archive
File, Setup Information, Structured File |
| .STG |
PageKeeper Storage
File |
| .STK |
Personal Stock
Monitor File |
| .STL |
Certificate Trust
List, CAD Software Solid Modeling/Prototyping File |
| .STM |
Sound File, State
Transition Diagram Model, Scream Tracker v2 Module, SHTML File |
| .STO |
Genus
Pascal Stub OBJ File |
| .STP |
PageKeeper Packed
Storage File |
| .STR |
dBase
Structure List, DataPerfect Structure File, Sceensaver,
Stream File (Playstation Discs) |
| .STS |
MS
C Project Status Info |
| .STY |
Style Sheet, MS
Interactive Music Control, LaTeX2e Style |
| .SUD |
Super Project
Analyzer Data |
| .SUN |
Sun Raster Graphic
File |
| .SUP |
WordPerfect
Supplemental Dictionary, Super Porject Analyzer Project |
| .SVD |
Word
Backup File |
| .SVG |
Word
Backup File, Scalable
Vector Graphics File |
| .SVS |
Word
Backup File |
| .SVX |
Interchange File
Format, 8SVX/16SV, Amiga 8SVX Sound |
| .SW |
Audio File, Raw
Signed Word (16-bit) Data |
| .SWA |
Shockwave Audio File |
| .SWD |
Storybook File
(educational) |
| .SWF |
Macromedia
Flash Format |
| .SWI |
Swish
Data File |
| .SWL |
Macromedia
Flash Format |
| .SWP |
Sprint Backup File,
Swap File |
| .SWT |
VB Setup Wizard
Template File, Space Watch Pro Data File |
| .SY3 |
Harvard
Symbol File (Harvard Graphics taken over by Serif) |
| .SYD |
Sysedit Backup File |
| .SYL |
SYLK Spreadsheet
Format |
| .SYM |
Symbol Table
(various) |
| .SYN |
Synonym File |
| .SYS |
System
Configuration, System Device Driver |
| .SYW |
Harvard
Symbol Graphic (Harvard Graphics taken over by Serif),
Yamaha SY-series Wave Files |
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