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)

SC4

Level file (Roller Coaster Tycoon)

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

SDP

Datafile (Cocreate SolidDesigner)

SDPC

Datafile (Cocreate SolidDesigner)

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)

SED

Screen editor script files (SED)

SEL

Data file (Copy Books)

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)

SEW

Sewing program file (Generic)

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)

SGF

Graphics file (Sonique)

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)

SHN

Audio compression file (Shorten)

SHP

DOS shapes file (3D Studios)

SHP

File format used by some programs for 3D modeling of multipart interactive triangle models

SHP

Shapefile spatial data format (used by many GIS programs)

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)

SHX

Shapefile spatial index file (ArcView)

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)

SKF

Drawing file (AutoSketch)

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)

SMS

Emulator ROM image file (8-bit Sega Master System)

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)

SO

Shared library file (Unix)(equivalent to a Windows DLL)

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)

SP4

Saved game (Roller Coaster Tycoon)

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)

SQP

Query result of audio search (Sonique)

SQR

Structured Query Language (SQL) program file

SQZ

Compressed archive (SQUEEZE)

SRE

Undefined file (Motorola)

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)

STQ

Text file (Statistica) (StatSoft Software)

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 graphics file (Adobe)

SVP

Graphics file (Sonique)

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)


T

Source file (TADS)

T

Tape archive (TAR) (Without compression)

T

Tester symbol file (ReaGeniX code generator)

TAB

Table file (MapInfo GIS)

TAB

Guitar Tablature file

TAG

Query tag name file (DataFlex)

TAH

Turbo assembler help file (Borland C++)

TAL

Text illustration file (TypeAlign)

TAR

Tape Archive

TAR

Compressed archive (TAR)

TAZ

Gzip/Tape archive (Unix)

TAZ

Compressed ASCII archive (TAR)

TAZ

Compressed ASCII archive (COMPRESS)

TB1

Font file (Borland Turbo C)

TB2

Font file (Borland Turbo C)

TBF

Fax document (Imavox TurboFax)

TBK

Interactive multimedia files (Asymetrix Toolbook)

TBK

Memo backup file (dBase IV)

TBK

Memo backup file (Microsoft FoxPro)

TBK

Toolbook file (Asymetrix Toolbook)

TBL

Graphics (Native format) (Pagemaker TableEditor)

TBL

Table of values (OS/2)

TBS

Text elements (Microsoft Word for Windows)

TBX

Table (Project Scheduler 4)

TC

Configuration file (Turbo C)

TC

Configuration file (Borland C++)

TCH

Turbo C Help file (Borland C++)

TCL

Script in the TCL/TK Language

TCW

Drawing file (TurboCAD for Windows)

TD

Configuration file (Turbo Debugger for DOS)

TD0

Disk image file (Teledisk)

TD2

Configuration file (Turbo Debugger for WIN32)

TD4

Saved track design (Roller Coaster Tycoon)

TDB

Database file (Thumbs Plus)

TDB

Database file (TACT)

TDDD

A file format use by the Imagine & Turbo Silver ray-tracers

TDF

Font file (TheDraw)

TDF

Typeface definition file (Speedo)

TDH

Help file (Turbo Debugger0

TDK

Keystroke recording file (Turbo Debugger)

TDS

Symbol table (Turbo Debugger)

TDW

Configuration file (Turbo Debugger for Windows)

TEF

Fax document (Relisys TEFAX)

TEL

Hostfile (Telnet)

TEM

Turbo Editor Macro Language script (Borland C++)

TEM

Input template (IconAuthor)

TEX

Texture file

TEX

TEX text file (Scientific Word)

TEX

Datasheet file (Idealist)

TF

Configuration file (Turbo Profiler)

TFA

Area file (Turbo Profiler)

TFC

Catalogue file (Tobi's Floppy Disk Cataloguer)

TFH

Help file (Turbo Profiler)

TFM

Form file (Form Tool Gold)

TFM

TeX font metrics file (TeX)

TFM

Tagged font metric file (TeX)

TFS

Statistics file (Turbo Profiler)

TG1

Project file (On Target)

TGA

Targa bitmap (Adobe Acrobat,TrueVision)

TGA

Targa bitmap (Countour Mortgage Loan Format)

TGA

Winpoint Loan file (Microsoft Excel)

TGQ

Movie file (Dungeon Keeper 2) (Bullfrog Software)

TGV

Video file (Electronic Arts) (Need for Speed I/II/III, NBA '96)

TGZ

Gzip/Tape archive (Unix)

THEME

Desktop theme (Microsoft Windows 9.x)

THM

Thumbnail image file (Microsoft Clip Gallery v.1.x)

THN

Thumbnail (Graphics Workshop for Windows)

THS

Thesaurus dictionary (Microsoft WordPerfect for Windows)

TIF

Tag image bitmap file (TIFF)

TIFF

Tag image bitmap file (TIFF)

TIG

Map file (Tiger) (Used by the US Government to distribute Map files)

TIL

Fuzzy Logic knowledge base file (Togai InfraLogic Fuzzy-C Compiler)

TIM

Texture/Image file (Playstation)

TIS

Tile set (MahJongg 3.0)

TJF

backup files (VAXTPU Editor)

TLB

OLE type library files (Microsoft)

TLB

Reference table (Bubble Editor)

TLB

Text library (VAX)

TLB

Type library (Visual C++)

TLC

Compiled tool command language source code file (Swat)

TLE

Two-Line element set (NASA)

TLP

Project timeline file (Microsoft Project)

TLX

Data file (Trellix)

TMF

Tagged font metric file (Microsoft WordPerfect for Windows)

TMO

Ztg global optimizer default optimizer file (Zortech C++)

TMP

Temporary file (Microsoft Windows) (ALL)

TMS

Script file (Telemate)

TNV

Data file (BitWare)

TOC

Table of contents file (Eudora Mailbox)

TOL

Image file (Kodak Photo Enhancer)

TOS

The Operation System for Atari line of 16/32 and 32/32 computers

TOS

Self-Extracting archive (Atari ST)

TP

Configuration file (Turbo Pascal)

TP

Sesson-state file (Turbo Profiler)

TP4

Saved picture file (Roller Coaster Tycoon)

TPB

Downloadable PCL Soft font file backup (HiJaak)

TPF

Downloadable PCL Soft font file (HiJaak)

TPH

Help file (Turbo Pascal)

TPL

Residents units library (Turbo Pascal)

TPL

Template file ( Cakewalk Audio)

TPL

Template file (Harvard Graphics 2.0)

TPL

Template file (DataCAD)

TPL

Encrypted lesson file (TutorPro)

TPP

Project file (Teleport Pro)

TPP

Protected mode units (Borland Pascal 7.0)

TPU

Turbo Pascal Unit (Turbo Pascal)(BGI)

TPU

Command file (VAXTPU Editor)

TPV

Packed graphics file (TutorPro)

TPW

Session-state file (Turbo Profiler for Microsoft Windows)

TPW

Packed wave files (TutorPro)

TPW

Turbo Pascal Unit (BGI) (Turbo Pascal for Windows 9.x)

TPX

Image file (ULead Photo Express)

TPZ

Compressed archive (TAR)

TPZ

Compressed archive (GNUzip)

TP3

Template file (Harvard Graphics)

TR

Session-state settings (Turbo Charge Debugger for DOS)

TR2

Session-state settings (Turbo Charge Debugger for Win32)

TRA

Saved game file (Coaster)

TRC

Debug support file (Power CTrace)

TRE

Directory tree file (PC-Tools)

TRK

Script file (Kermit)

TRM

Terminal file (Generic)

TRM

Terminal settings file (Microsoft Windows 3.x)

TRN

Translation support file (Quattro Pro)

TRN

Project usage log (MKS Source Integrity)

TRS

Executable file (MicroGraphix)

TRW

Session-state settings (Turbo Debugger for Windows)

TST

Printer test file (Microsoft WordPerfect for Windows)

TTF

TrueType font (Generic)

TTK

Translation tool kit file (Corel Catalyst)

TTO

Client access data specification file (AS/400) (Server to Client)

TUV

Tutorial file (Many programs use this suffix for their tutorials) (Generic)

TV

Table view settings (Paradox)

TV1

Overflow file above insert point in document 1 (Microsoft WordPerfect for Windows)

TV2

Overflow file above insert point in document 2 (Microsoft WordPerfect for Windows)

TV3

Overflow file above insert point in document 3 (Microsoft WordPerfect for Windows)

TV4

Overflow file above insert point in document 4 (Microsoft WordPerfect for Windows)

TV5

Overflow file above insert point in document 5 (Microsoft WordPerfect for Windows)

TV6

Overflow file above insert point in document 6 (Microsoft WordPerfect for Windows)

TV7

Overflow file above insert point in document 7 (Microsoft WordPerfect for Windows)

TV8

Overflow file above insert point in document 8 (Microsoft WordPerfect for Windows)

TV9

Overflow file above insert point in document 9 (Microsoft WordPerfect for Windows)

TVF

Table view settings (dBase IV)

TWF

Data file (TABWorks)

TWW

Template file (TagWrite)

TX8

MS-DOS text

TXB

Encoded briefing file (Descent/D2)

TXF

Compressed archive (TAR)

TXF

Compressed archive (FREEZE)

TXF

Tax exchange format (Quicken and others)

TXI

Support file (TeX)

TXT

ASCII text-formatted audio data

TXW

Wave file (Yamaha TX16W)

TYM

Time Stamp files (PageMaker 4.0)

TZ

Old compression file (TAR), (COMPRESS)

TZB

Compressed archive (Tar)

T2T

Modeling software file (Sonata CAD)

T44

Temporary file for sorting index (dBase IV)

T64

Emulator tape image file (Commodore 64)