S
Assembler source code (Unix)
S
Source code file (Scheme)
SAI
Encrypted video file (Integrated Sensors)
SAL
Datafile (SORITEC)
SAM
Document (AMI Professional)
SAM
Signed 8bit sample data file
SAR
Compressed archive (SAR)
SAV
Saved game file (Generic)
SAV
Backup file (Generic)
SAV
Configuration file (Generic)
SB
Raw Signed Byte (8bit) audio data
SBD
Storyboard data file (Storyboard Editor)
SBD
Data definition file (Superbase)
SBF
File data (Superbase)
SBI
Instrument file (Creative Labs SoundBlaster)
SBK
Bank file (Soundblaster)/EMU SoundFont v1.x (Creative Labs Soundfont 1.0)
SBL
Flash object (ShockWave)
SBP
Dml program file (Superbase 4)
SBP
Program file (Superbase)
SBQ
Query definition file (Superbase)
SBR
Support file (Source Browser)
SBT
Notes related to record data (Superbase 4 for Windows)
SBV
Form definition file (Superbase)
SB!
Locking file (Superbase)
SC
Pal script (Paradox)
SC
Display driver (Framework II)
SC2
Schedule+ 7.0 file (Microsoft)
SC2
SAS catalog (Windows 95/NT, OS/2, Mac)
SC3
Saved game file (SIMM City 3000)
SC3
Renamed dBase III screen mask file (dBase IV)
SC3
Screen device driver (Harvard Graphics 3.0)
SCA
Datafile (SCA)
SCC
Source Safe file (Microsoft)
SCC
Text file (Generic)
SCD
Slide image (Matrix/Imapro SCODL)
SCD
Object description language graphics (Scodl Scan Conversion)
SCD
Datafile (Microsoft Schedule+ 7.0)
SCF
Command file (Microsoft Windows Explorer)
SCF
Multimedia show (ScoreMaker)
SCF
Spell checker configuration file (Symphony)
SCH
Datafile (Microsoft Schedule+ 7.0)
SCH
Schematics file (ORCAD)
SCI
Inspire native format (ScanVec)
SCI
System configuration information file (Generic)
SCI
Fax document (SciFAX)
SCM
Scheme source code file (Generic)
SCM
Video game console ROM emulater file
SCN
Scene data file (TrueSpace2)
SCN
Screen file (Kermit)
SCO
High score file (Generic game file)
SCP
Dial-Up Networking Script
SCP
Script file (BITCOM)
SCR
Screensaver file (Microsoft Windows 9.x)
SCR
Fax image (Generic)
SCR
Debug source code (DOS Debug)
SCR
Screen snapshot file (dBase IV)
SCR
Screen snapshot file (Procomm Plus)
SCR
Screen font file (LocoScript)
SCT
SAS catalog (Dos)
SCT
CT bitmap (Scitex)
SCT
FoxPro forms (Microsoft)
SCT01
SAS catalog (Unix)
SCV
CASmate Native format (ScanVec)
SCX
FoxPro forms (Microsoft)
SCX
Bitmap graphics (ColorRIX)
SCX
Chart (Stanford Chart)
SCX
Screen file (Microsoft FoxPro)
SCY
Security file (ReaGeniX)
SD
Audio (Sound Designer I)
SD2
Flattened file/data fork (Sound Designer II)
SD2
SAS database (Windows 95/NT OS/2, Mac)
SDA
File archive description (Fidonet Software Distribution Network)
SDC
Spreadsheet (Staroffice)(StarCalc)
SDD
Presentation file (Staroffice)(Starimpress)
SDF
System Data File Format - legacy Unisys (Sperry) format
SDI
Software distribution network information file
SDK
Floppy disk image (Roland)
SDL
Library file (SmartDraw)
SDN
Software distribution network compressed archive
SDR
Drawing (SmartDraw)
SDS
Raw Midi Sample Dump Standard file
SDT
Template (SmartDraw)
SDV
Semicolon Divided Values file
SDW
Graphic file (Lotus WordPro)
SDW
Raw Signed DWord (32bit) data
SDX
Midi Sample Dump Standard files compacted by SDX
SEA
Self-expanding archive (used by Stuffit for Mac files and possibly by others)
SEC
Secret key ring file (PGP)
SEC
Secured animation file (Disney Animation Studio)
SEP
Tagged Image File Format (TIFF) bitmap
SEP
Printer seperator page (Generic)
SEQ
Animation file (Atari)
SEQ
Sequential instruction file (Bubble Chamber)
SES
Session file (Cool Edit) (common digital audio editor file )
SES
Session information file (Clarion Modula-2)
SESSION
Internet Security Scanner file (ISS)
SET
Configuration file (1st Reader)
SET
Install driver sets (Symphony)
SET
Setup option file (Generic)
SET
Voice set files (Quartet)
SF
SoundFile format (IrCam)
SF
Wps attribute storage file (OS/2 WorkPlace Shell)
SF2
SoundFont file (EMU version 2.0)
SF2
Bank file (Creative Labs Soundfont 2.0)(Soundblaster)
SFD
Sound File Data (SoundStage)
SFI
Sound File Info (SoundStage)
SFI
Graphics file (SIS Framegrabber)
SFI
Printer font file (Hewlett-Packard Laser Jet Landscape)
SFI
Printer font file (Ventura Publisher)
SFK
Sound file (Sonic Foundry)
SFL
Pcl 4 bitmap font (LandScape)
SFL
Pcl 4 bitmap font (Ventura Publisher)
SFL
Pcl 4 bitmap font (Intellifont)
SFN
Font file (SPX)
SFP
Pcl bitmap font (Portrait)
SFP
Pcl bitmap font (Intellifont)
SFP
Pcl bitmap font (Ventura Publisher)
SFR
Sample Resource (Sonic Foundry)
SFS
Pcl 5 scalable font file (Intellifont)
SFT
Screen font (ChiWriter)
SFW
Mangled JPEG (Seattle Filmworks)
SFX
Self-extracting archive (RAR)
SG
Image file (SnapGraphix)
SG1
Graphics file (Stanford Graphics)
SGF
Document w/graphics (StarWriter)
SGI
Graphics file (IRIS)
SGI
Graphics file (Silicon Graphics)
SGML
Standard Generalized Markup Language
SGP
Statistics file (STATGRAPHICS Plus)
SGT
Save/Get keyboard macro (Signature)
SH
Shell script (Unix)
SH
ASCii archive (Unix/SHAR)
SH3
Presentaion file (Harvard Graphics)
SHB
Presentation (Corel Show)
SHB
Document shortcut file
SHG
Bitmap (HotSpot)
SHK
Compressed Apple archive (SHRINKIT)
SHK
Compressed archive (Arthurian Shrink Archiver)
SHM
Shell macro (Microsoft WordPerfect for Windows Library)
SHP
DOS shapes file (3D Studios)
SHP
File format used by some programs for 3D modeling of multipart interactive triangle models
SHP
Source code and shape file for text fonts (AutoCAD)
SHR
File archive (Unix ASCii) (SHAR)
SHS
Shell scrap file; reportedly used to send "password stealers"
SHTML
HTML file containing Server Side Includes (SSI)
SHW
Presentation (Corel Show)
SHW
Presentation (Harvard Graphics 2.0)
SHW
Slide Show (Microsoft WordPerfect for Windows)
SHX
Shape entities (AutoCAD)
SIF
Setup installation files (Microsoft Windows NT)
SIG
Signature file (PopMail)
SIG
Current program settings (Signature)
SIK
Backup files (Microsoft Word for Windows)
SIK
Backup files (Sicherungskopie)
SIT
Compressed archive of Mac files (Stuffit)
SIZ
Configuration file (Oracle 7)
SKA
Secret Keyring file (PGP)
SKL
Resource file (Macromedia Director)
SL
Save Layout extension (PACT)
SL
Source code file (S-Lang)
SLB
Slide Library File (AutoCAD)
SLC
Compiled SALT script (Telix)
SLD
Slide File (AutoCAD)
SLI
Slide file (MAGICorp Slide Service)
SLK
Symbolic link spreadsheet (SLYK)
SLL
Sound data file (Generic)
SLT
Script application language (SALT) (Telix script source)
SM
Source code file (Smalltalk)
SM
Maillist (SoftSpoken Mailer)
SM
Script file (ScriptMaker)
SM
Text file (Samna Word)
SM3
Symbol file (DataCAD)
SMD
Video game console ROM emulator file
SMF
Fax document (SMARTFAX)
SMK
Image file (Deer's Revenge)
SMK
Image file (Smack Player)
SMK
Image file (Nascar Racing '99)
SMM
Macro (AMI Pro)
SMP
Samplevision format
SMP
Sample file (AdLib Gold)
SMT
Text file (Smart Ware II)
SMT
SmartObject file (IconAuthor)
SND
Sound file (NeXt)
SND
Sound resource (Macintosh)
SND
Raw unsigned PCM data
SND
Sample (AKAI MPC)
SNDR
Sound file (Sounder)
SNDT
Sound file (SndTool)
SNG
Midi song file (Midisoft Studio)
SNG
Midi song file (Prism)
SNM
Mailbox (mail folder) index (Netscape)
SNO
Source code file (Snobol4)
SNP
Output video file (Computer Eyes)
SOL
Solution file (Common used with game examples,tutorials)
SOM
Network serial numbers (Quattro Pro)
SOM
Sort information files (Paradox)
SON
Song file (Creative Labs SoundBlaster Studio II)
SOU
Sound file (Creative Labs SoundBlaster Studio)
SP
Compressed archive for Unix (Sprint)
SPC
Program file (Microsoft MultiPlan)
SPC
Temporary file (Microsoft WordPerfect for Windows)
SPD
Data file (Speech)
SPD
Scalable font (Speedo)
SPD
Scalable font (Harvard Graphics 3.0)
SPF
Slide presentation file (EnerGraphics)
SPG
Glossary file (Sprint)
SPI
Graphics file (Siemens Scanner)
SPI
Graphics file (Phillips Scanner)
SPL
Object file (ShockWave Flash)
SPL
Sample file (DigiTracker)
SPL
Compressed archive (SPLINT)
SPL
Customized printer driver (Sprint)
SPL
Personal spell dictionary (Signature)
SPL
Printer spool file (Microsoft Windows 3.x)
SPL
Sample file (Generic)
SPM
Data file (Microsoft WordPerfect for Windows)
SPP
Printer file (Sprint)
SPPACK
Sound sample (SP Pack)
SPR
Document letter (Sprint)
SPR
Generated screen program (Microsoft FoxPro)
SPR
Sprite (Image layering and resizing)
SPRITE
Bitmap file (Acorn)
SPS
Spssx source code file (VAX/VMS)
SPS
Screen driver (Sprint)
SPT
Source code file (Spitbol)
SPT
Support file (MITAC disk/system management utility package)
SPU
Picture file (Spectrum 512)
SPW
Worksheet (SigmaPlot)
SPX
Compiled screen program (Microsoft FoxPro)
SQC
Structured Query Language (SQL) common code file
SQL
SQL queries (Informix)
SQL
Generally used by database products as an extension for SQL queries (scripts, text, or binary)
SQR
Structured Query Language (SQL) program file
SQZ
Compressed archive (SQUEEZE)
SRF
Raster graphics file (Sun)
SRM
Video game console ROM emulator file
SRP
SCript file (QuickLink)
SRZ
Source file (DataFlex)
SS
Bitmap graphics (Splash)
SSA
Video file (Sub Station Alpha)
SSD
Datafile (SAS/PC)
SSD01
SAS data sets (Unix)
SSD
SAS database (Dos)
SSF
Spreadsheet file (Enable)
SSP
Datafile (SAS Transport)
ST
Source code file (Little SmallTalk)
ST
Instrument library (Scream Tracker)
ST
Disk Image file (Atari)
ST
Stamp file (NeoPaint)
STA
Saved state (Reflection 4.0)
STA
Stack file (SpinMaker Plus)
STB
Stub library (Genus GX Kernel)
STD
State transition diagram graphic file (Prosa)
STD
Standard script file (LocoScript)
STF
Compressed archive (SHRINKTOFIT)
STL
Stereolithography file
STM
Shorter suffix for .shtml, an HTML file containing a server side include (SSI)
STM
Music module (MOD) (Scream Tracker 2)
STM
State transition diagram model file (Prosa)
STM
Music file (Scream Tracker)
STO
Pascal stub OBJ file (Genus GX Kernel)
STR
Screensaver file
STR
Structure list OBJ file (dBase IV Application Generator)
STS
Project status information file (Microsoft C/C++)
STS
Song file (Music) (Scream Tracker)
STY
Style sheet (Ventura Publisher)
STW
Data file (SmartTerm for Windows)
STX
Electronic book file (SmarText)
STX
Tax form (CA-Simply Tax)
STY
Style sheet (Generic text and graphics programs0
SUI
Suit library (Simple User Interface Toolkit)
SUM
Summary file (Generic)
SUN
Rasterfile graphics (Sun)
SUP
Supplementary dictionary files (Microsoft WordPerfect for Windows)
SVD
Autosave file for document (Microsoft WordPerfect for Windows)
SVF
Simple Vector Format 2D image (Microstation)
SVG
Autosave file for glossary (Microsoft WordPerfect for Windows)
SVG
Scalable vector graphic file (Adobe)
SVS
Autosave file for style sheet (Microsoft WordPerfect for Windows)
SVX
Sound file (Amiga 8SVX)
SVX
Interchange file format, 8SVX/16SV
SVY
Database file (SAVVY/PC)
SW
Raw signed Word (16bit) data
SWA
Shockwave audio file in Macromedia Director (an MP3 file)
SWF
Object (ShockWave Flash)
SWG
Swag Packet file (SWAG Reader)
SWP
Swap file (DataCAD)
SWP
Document backup file (Sprint)
SWP
Swap file (DOS)
SY1
Smartpix symbol library (Ami Pro)
SY3
Symbol file (Harvard Graphics 2.0)
SYD
Backup of startup files (QEMM)
SYM
Precompiled header file (Borland C++)
SYM
Program symbol table (Generic to compilers)
SYM
Symbol file (Harvard Graphics 2.0)
SYN
SDSC Synu image file (SDSC Image Tool)
SYN
Synonym file (Microsoft Word 5.0)
SYS
System file (Generic)
SYS
Datafile (SYGRAPH)
SYS
Datafile (SYSTAT)
SYS
Datafile (SPSS/PC)
SYS
System file Device driver or hardware configuration file
SYW
Wave file (Yamaha SV-series)
SYW
Graphics symbols (Harvard Graphics)
S3I
Instrument file (Scream Tracker v 3.0)
S3M
16 channel music file (Scream Tracker v 3.0)
S$$
Temporary sort file (Sprint)