S File Extensions
Browse file types with extensions beginning with S.
| Extension | File Type | Popularity |
|---|---|---|
| .S | Source Code File | 3.8 |
| .S | Microsoft Train Simulator Shape File | 3.4 |
| .S00 | ZipSplitter Part 1 File | 4.1 |
| .S01 | ZipSplitter Part 2 File | 3.4 |
| .S02 | ZipSplitter Part 3 File | 3.5 |
| .S09 | ZipSplitter Part 10 File | 2.0 |
| .S10 | Brasfoot Saved Game File | 2.5 |
| .S16 | Digital Voice Recorder Audio File | 2.0 |
| .S19 | Motorola S19 File Record | 3.8 |
| .S2A | SEAL2 Application | 3.0 |
| .S2ARR | SynthFont2 Arrangement File | 2.3 |
| .S2E | SWF to EXE Converter Project File | 3.3 |
| .S2M | Stronghold 2 Map File | 3.3 |
| .S2M | The Settlers 2 Map File | 3.7 |
| .S2MH | StarCraft 2 Map Header File | 2.0 |
| .S2ML | StarCraft 2 Map Localization File | 4.0 |
| .S2MV | StarCraft 2 Map Preview File | 3.3 |
| .S2P | Songs2See Game Song | 2.0 |
| .S2QH | StarCraft 2 Localization Header File | 2.0 |
| .S2QL | StarCraft 2 Unit Localization File | 1.5 |
| .S2S | Songs2See Editor Project | 2.0 |
| .S2Z | Heroes of Newerth Game Data File | 4.0 |
| .S3G | MakerBot 3D Print File | 3.0 |
| .S3I | Scream Tracker 3 Instrument | 3.7 |
| .S3M | ScreamTracker 3 Module | 3.8 |
| .S3S | Samorost 3 Game Save File | 3.0 |
| .S3Z | Compressed Scream Tracker 3 Module | 2.5 |
| .S4D | Scratch for Discord Project | 4.0 |
| .S4DIX | Scratch for Discord Extension | 3.5 |
| .S4M | SWAT 4 Map File | 3.3 |
| .S5X | Heritage of Kings: The Settlers Map File | 1.3 |
| .S7Z | Mac OS X 7-Zip File | 4.0 |
| .S85 | Sabre Airline Solutions Chart | 2.0 |
| .SA | Xiaomi Mobile Phone Hidden File | 3.1 |
| .SA1 | Game Boy Emulator Save File | 3.2 |
| .SA9 | Hue and Cry Photoshop Plug-in | 2.0 |
| .SAB | ACIS SAB Model | 3.5 |
| .SAB | Saber File | 2.0 |
| .SABER | Beat Saber Custom Saber | 4.0 |
| .SABL | Call of Duty: Black Ops II Sound Archive | 4.3 |
| .SAD | Black & White Audio File | 3.8 |
| .SAF | Secure Audio File | 4.0 |
| .SAF | SafeText File | 3.4 |
| .SAF | Street Atlas USA Map File | 3.9 |
| .SAF | McAfee Fortress File | 3.4 |
| .SAF | Cricket Shot Animation File | 1.0 |
| .SAFARIEXTZ | Apple Safari Extension | 3.7 |
| .SAFE | SIGLock Encrypted File | 3.8 |
| .SAFENOTEBACKUP | Safe Note Backup File | 2.0 |
| .SAFETENSORS | Stable Diffusion Model | 4.0 |
| .SAFETEXT | SafeText File | 2.9 |
| .SAGA | Cross Stitch Saga Pattern | 2.2 |
| .SAGE | Sage Ransomware Encrypted File | 2.0 |
| .SAGE | SageMath Program | 3.0 |
| .SAH | SETI@home Data File | 3.0 |
| .SAI | PaintTool SAI Image | 4.0 |
| .SAI2 | PaintTool SAI Version 2 Image | 3.4 |
| .SALL | SimplySync Backup Configuration File | 1.5 |
| .SALMA | Salma Ransomware Encrypted File | 3.5 |
| .SAM | Ami Pro Document | 2.8 |
| .SAM | MOD Edit Sample File | 3.7 |
| .SAM | Samurize Package | 3.5 |
| .SAM | LMHOSTS Sample File | 3.9 |
| .SAM | SAM Studio Project | 1.7 |
| .SAM07 | SAM 2007 Package | 3.0 |
| .SAMI | Grand Theft Auto San Andres Mod Installer File | 4.4 |
| .SAMP | Nintendo ADPCM Sound Sample File | 2.3 |
| .SAMPLE | Godot Engine Wav Audio File | 2.6 |
| .SAN | Smush Animation File | 3.4 |
| .SAP | Atari SAP Music File | 2.9 |
| .SAPK | SICK AppPool Application | 2.8 |
| .SAR | Saracen Paint Image | 3.0 |
| .SAR | Sibelius Arrange Style | 3.0 |
| .SAR | SAPCAR Archive | 3.2 |
| .SARC | Sead ARChived Resource File | 1.7 |
| .SAS | SAS Program File | 3.5 |
| .SAS7BDAT | SAS Dataset File | 3.0 |
| .SASBX | Space Agency Sandbox File | 4.1 |
| .SASS | Syntactically Awesome StyleSheets File | 3.2 |
| .SAT | ACIS SAT 3D Model | 3.9 |
| .SAV | Video Game Save File | 4.0 |
| .SAV | SPSS Data File | 3.5 |
| .SAV | Parallels Desktop Saved State Image File | 3.5 |
| .SAV | Nintendo DS Save File | 4.0 |
| .SAV | Mass Effect 3 Saved Game | 3.6 |
| .SAV | Fallout 2 Map Archive | 3.7 |
| .SAV | Fortnite ClientSettings File | 3.3 |
| .SAV | GameCube Saved Game | 2.8 |
| .SAV | Wii Saved Game | 3.8 |
| .SAV | Satisfactory Saved Game | 2.5 |
| .SAVE | Nano Temporary Save File | 3.8 |
| .SAVE | The Sims 4 Save File | 4.1 |
| .SAVE | RetroGames.cc Saved Game | 2.0 |
| .SAVEDDECK | Nokia Saved Web Page | 2.3 |
| .SAVEDSEARCH | Spotlight Saved Search | 3.7 |
| .SAVEDSTATE | Virtual Router Saved State File | 2.0 |
| .SAVER | Mac OS X Screen Saver | 3.4 |
| .SAZ | Fiddler Session Archive | 3.0 |
| .SB | Signed Byte Audio File | 2.4 |
| .SB | Scratch Project File | 4.3 |
| .SB | Small Basic Source Code File | 3.0 |
| .SB | Slax Bundle | 2.6 |
| .SB | Frostbite Engine Superbundle | 1.0 |
| .SB.BRANCH | Branch Project | 1.5 |
| .SB2 | Scratch 2.0 Project File | 4.3 |
| .SB3 | Scratch 3.0 Project | 4.3 |
| .SBAO | Ubisoft Sound File | 2.0 |
| .SBB | Office Accounting Company Backup File | 4.1 |
| .SBC | Office Accounting Company Shortcut File | 2.2 |
| .SBC | Space Engineers Data File | 4.0 |
| .SBD | Superbase Data Definition | 2.7 |
| .SBD | Office Accounting Company Data File | 4.3 |
| .SBD | DNASTAR SeqBuilder File | 2.0 |
| .SBF | SmartBroker Data | 1.0 |
| .SBF | Superbase Database | 2.8 |
| .SBF | Android System File | 3.6 |
| .SBF | Septentrio Binary File | 2.0 |
| .SBFRES | Compressed Breath of the Wild Model File | 2.8 |
| .SBG | SBaGen Binaural Beat File | 3.7 |
| .SBGF | Grapher Settings File | 3.0 |
| .SBI | Sound Blaster Instrument | 3.7 |
| .SBK | SWiSH Project Backup File | 3.5 |
| .SBK | E-MU SoundFont Sound Bank | 2.8 |
| .SBK | Scrapbook Factory File | 2.9 |
| .SBK | Multimedia ToolBook System Book | 3.5 |
| .SBM | Space Engineers Mod File | 4.6 |
| .SBN | ESRI Spatial Binary File | 3.3 |
| .SBN | Cisco IP Phone Firmware File | 3.8 |
| .SBN | GT-31 Binary Data File | 4.1 |
| .SBP | OpenSBP CNC Program File | 2.2 |
| .SBP | Sketchbook Express iCloud Image | 2.5 |
| .SBPAGE | Storybook Creator 4 Page | 1.0 |
| .SBPROJ | OpenGL Shader Builder Project | 2.0 |
| .SBQ | Superbase QuickReports File | 2.0 |
| .SBR | Visual Studio Source Browser Intermediate File | 3.7 |
| .SBRES | Small Basic LitDev Resource File | 2.5 |
| .SBS | Secure Backup System File | 1.8 |
| .SBS | SPSS Script | 2.4 |
| .SBS | Substance Package | 3.4 |
| .SBSAR | Substance Archive | 3.4 |
| .SBT | SBT Subtitle File | 3.8 |
| .SBT | Superbase Data Notes | 2.3 |
| .SBU | Samsung Backup File | 3.9 |
| .SBV | Superbase Form Definition | 4.1 |
| .SBV | YouTube Captions File | 4.2 |
| .SBW | US Treasury Savings Bonds Wizard File | 3.0 |
| .SBX | ESRI Spatial Index File | 1.8 |
| .SBX | GLBasic Shoebox File | 1.8 |
| .SBX | Adobe Illustrator Tsume File | 1.5 |
| .SBX | SeqBox Container File | 1.2 |
| .SBX | ScratchX Project File | 4.7 |
| .SBXLS | Sandboxels Save | 4.2 |
| .SBZ | ShowBiz Project File | 3.0 |
| .SC | SuperCollider Source Code File | 3.7 |
| .SC | Space Engine Script | 3.5 |
| .SC | Scala Worksheet | 4.0 |
| .SC | Supercell Texture | 3.3 |
| .SC | Streak Project | 1.0 |
| .SC2 | Sample Cell II Instrument Definition | 4.0 |
| .SC2 | SimCity 2000 City File | 4.0 |
| .SC2 | World of Tanks Blitz Model | 3.7 |
| .SC2ARCHIVE | Blizzard StarCraft 2 Archive File | 4.0 |
| .SC2ASSETS | Blizzard StarCraft 2 Assets File | 4.3 |
| .SC2BANK | StarCraft 2 Bank File | 3.3 |
| .SC2DATA | Blizzard StarCraft 2 Data File | 3.0 |
| .SC2LOCALE | Blizzard StarCraft 2 Localization File | 2.0 |
| .SC2MA | StarCraft 2 Map Data File | 4.0 |
| .SC2MAP | Blizzard StarCraft 2 Map File | 4.1 |
| .SC2MOD | Blizzard StarCraft 2 Modification File | 4.0 |
| .SC2REPLAY | Blizzard StarCraft 2 Replay File | 4.2 |
| .SC2SAVE | Blizzard StarCraft 2 Saved Game | 4.2 |
| .SC2SCENE | StarCraft 2 Cut Scene File | 1.5 |
| .SC3 | SimCity 3000 City File | 3.3 |
| .SC4 | SimCity 4 Saved File | 4.1 |
| .SC4 | RollerCoaster Tycoon Scenario File | 4.0 |
| .SC4 | SuperCard 4 Project File | 2.8 |
| .SC45 | SuperCard Project File | 3.5 |
| .SC4DESC | SimCity 4 Description File | 4.0 |
| .SC4LOT | SimCity 4 Lot File | 3.2 |
| .SC4MODEL | SimCity 4 Model File | 3.7 |
| .SC5 | Chris Sawyer's Locomotion Scenario File | 2.3 |
| .SC6 | RollerCoaster Tycoon 2 Scenario File | 3.5 |
| .SCA | Norton AntiVirus Scan File | 4.0 |
| .SCA | Scala Script File | 3.0 |
| .SCACFG | SuperCard Application Configuration File | 2.0 |
| .SCAD | OpenSCAD Script | 3.8 |
| .SCALA | Scala Source Code File | 3.6 |
| .SCALE | Scale Source Code | 4.0 |
| .SCAP | EFI Firmware File | 2.9 |
| .SCAR | SCAR Script | 3.8 |
| .SCB | Scala Published Script | 3.9 |
| .SCB | Scrambls Encrypted File | 3.7 |
| .SCB | Euro Truck Simulator 2 Product Key File | 4.0 |
| .SCBACKUP | Secret Calculator Folder Backup | 1.0 |
| .SCC | Scenarist Closed Caption File | 3.4 |
| .SCC | SourceSafe Source Code Control File | 3.7 |
| .SCC | ScreenFlow Screen Recording | 3.6 |
| .SCD | TurboTax Tax Schedule List | 3.0 |
| .SCD | Data Rescue Saved Scan File | 2.0 |
| .SCD | Microsoft Schedule+ Schedule | 2.0 |
| .SCDOC | SpaceClaim Document | 3.0 |
| .SCE | Scilab Script | 3.0 |
| .SCEA | Aleph One Map File | 3.0 |
| .SCENE | Antibody Level File | 3.4 |
| .SCEXCLUDB | Spring Cleaning Exclusions File | 3.0 |
| .SCF | Shell Command File | 3.0 |
| .SCF | DNA Sequence Chromatogram File | 2.7 |
| .SCF | SimTown Sounds File | 1.4 |
| .SCG | ColoRIX Image | 2.0 |
| .SCG | myPM SCG Definition File | 3.2 |
| .SCGC | myPM SCG Classic Data File | 3.5 |
| .SCGP | myPM SCG Pro Data File | 2.0 |
| .SCGS | myPM SCG Starter Data File | 3.0 |
| .SCH | EAGLE Schematics File | 3.4 |
| .SCH | SuperCard Help Project File | 3.0 |
| .SCH | Strater Scheme File | 2.5 |
| .SCH | KiCad Schematic File | 2.9 |
| .SCH | gEDA Schematic File | 3.7 |
| .SCH | ExpressSCH Schematics File | 2.0 |
| .SCHDOC | Altium Designer Schematic Document | 3.0 |
| .SCHEM | Minecraft Schematic | 4.0 |
| .SCHEMAS | GConf Schema Definition File | 3.5 |
| .SCHEMATIC | Minecraft Schematic | 4.3 |
| .SCI | ColoRIX Graphics Image | 1.0 |
| .SCI | Scilab Script | 3.2 |
| .SCL | Sibelius Chord Diagram Library | 4.0 |
| .SCL | Scala Musical Scale | 2.0 |
| .SCLVL | Scritter's Nest Data File | 2.7 |
| .SCM | StarCraft Map File | 4.4 |
| .SCM | ScreenCam Screen Recording | 3.9 |
| .SCM | Schema File | 3.6 |
| .SCM | Super Chain Media File | 4.0 |
| .SCM | GIMP Script-Fu Script | 4.3 |
| .SCM | Samsung Channel List File | 3.3 |
| .SCM | CLEO Compiled Script | 3.6 |
| .SCM | Scheme Source Code File | 4.0 |
| .SCML | Spriter Configuration XML File | 3.8 |
| .SCN | SimCity 2000 Scenario | 2.5 |
| .SCN | Pinnacle Studio Scene File | 2.3 |
| .SCN | Age of Empires / Mythology Scenario | 3.2 |
| .SCN | OpenTTD Scenario File | 3.2 |
| .SCN | TreePaint Image | 1.8 |
| .SCN | Orbiter Scenario File | 2.0 |
| .SCN | TD Scan Data File | 1.3 |
| .SCN | Godot Engine Binary Scene File | 3.1 |
| .SCN | Leica Whole Slide Image | 2.5 |
| .SCN | Bio-Rad Gel Image | 2.7 |
| .SCN | Behringer X32 Scene | 2.0 |
| .SCN0 | Wii Texture Animation File | 1.0 |
| .SCO | TotalRecovery Backup Image | 3.5 |
| .SCO | OMSI Scenery Object Configuration File | 4.3 |
| .SCONF | Script Settings File | 3.5 |
| .SCOREBOARD | VMware Virtual Machine Stats File | 3.0 |
| .SCP | ColoRIX Bitmap Graphic | 2.4 |
| .SCPCFG | SuperCard Project Configuration File | 2.0 |
| .SCPRESETS | Snap Converter Presets File | 3.8 |
| .SCPT | AppleScript Script File | 3.9 |
| .SCPTD | AppleScript Script Bundle | 3.0 |
| .SCR | Script File | 3.8 |
| .SCR | Windows Screensaver | 3.9 |
| .SCRATCH | Scratch 0.x Project | 4.1 |
| .SCREENFLOW | ScreenFlow Document | 3.7 |
| .SCRESTORELOG | Spring Cleaning Restore Log | 3.0 |
| .SCRESULTS | Spring Cleaning Results File | 2.0 |
| .SCRIBE | VideoScribe Project | 3.1 |
| .SCRIPA | Scarlet IPA Backup | 4.2 |
| .SCRIPT | Generic Script File | 3.9 |
| .SCRIPTLIBRARY | Painter Script Library | 2.0 |
| .SCRIPTS | Painter Script Library (Legacy) | 1.0 |
| .SCRIPTSUITE | AppleScript Script Suite File | 2.0 |
| .SCRIPTTERMINOLOGY | AppleScript Script Terminology File | 3.0 |
| .SCRIV | Scrivener Document | 3.0 |
| .SCRIVX | Scrivener XML Document | 3.0 |
| .SCS | SimCity Societies Saved Game File | 4.2 |
| .SCS | Prism3D Game Data | 4.2 |
| .SCS11 | Show Cue System Cue File | 3.0 |
| .SCSF | SEE Finance Data File | 3.5 |
| .SCSKIN | Survivalcraft Skin File | 3.3 |
| .SCSS | Sass Cascading Style Sheet | 4.3 |
| .SCT | Scitex Continuous Tone Image | 2.4 |
| .SCT | FoxPro Form Memo | 2.3 |
| .SCT | Windows Scriptlet | 3.4 |
| .SCU | ColoRIX Bitmap Image | 2.8 |
| .SCUT4 | Sure Cuts A Lot Version 4 Project | 2.3 |
| .SCUT5 | Sure Cuts A Lot Version 5 Project | 3.0 |
| .SCV | ScanVec CASmate Sign File | 3.3 |
| .SCW | Movie Magic Screenwriter Document | 1.7 |
| .SCW | Score Writer Document | 3.6 |
| .SCW | Supercell 3D Model | 2.0 |
| .SCWORLD | Survivalcraft World File | 4.5 |
| .SCX | FoxPro Form | 3.4 |
| .SCX | Game Scenario File | 3.4 |
| .SCX | Microsoft Game Scenario File | 3.7 |
| .SCX | SuperCard Help Project | 2.8 |
| .SCZ | SmartDraw Collection Package File | 3.0 |
| .SD | Sound Designer Audio File | 2.8 |
| .SD | ESPS Sampled Data | 3.5 |
| .SD2 | Sound Designer II File | 2.0 |
| .SD2F | Sound Designer 2 File | 2.3 |
| .SD7 | Spring Content Package | 2.3 |
| .SDA | StarOffice Drawing | 2.8 |
| .SDA | StarMoney User Database Archive | 2.0 |
| .SDAT | Nintendo DS Sound Data File | 3.8 |
| .SDB | Application Compatibility Database | 3.9 |
| .SDB | OpenOffice Base Database File | 3.5 |
| .SDB | SAP2000 Model File | 3.9 |
| .SDB | ServerBoss Database File | 3.6 |
| .SDB | MonKey Office SQLite Database File | 3.4 |
| .SDB | SocialDecks Blog File | 3.5 |
| .SDB | SparkleDB Database File | 3.3 |
| .SDC | Apache OpenOffice Calc Spreadsheet | 3.4 |
| .SDC | Stardock Central Download Archive | 3.6 |
| .SDC | Secure Download Cabinet | 3.5 |
| .SDC | Paragon Dictionary Database File | 3.0 |
| .SDD | StarOffice Presentation | 3.6 |
| .SDEF | AppleScript Dictionary Document | 2.5 |
| .SDF | Standard Database Format | 3.4 |
| .SDF | SQL Server Compact Database File | 3.6 |
| .SDF | Spatial Data Format File | 3.6 |
| .SDF | Structure Data File | 3.6 |
| .SDF | World in Conflict Game Map | 3.3 |
| .SDFDATA | Snowdrop Data File | 3.3 |
| .SDFI | Softing Data File | 2.0 |
| .SDFTOC | Snowdrop Data Table of Contents | 2.3 |
| .SDG | Strater Project File | 2.2 |
| .SDI | Windows System Deployment Image | 3.9 |
| .SDII | Sound Designer 2 Audio File | 3.0 |
| .SDINSTALL | Speckie Dictionary Installation File | 4.0 |
| .SDKU | Sudoku Solver Puzzle | 2.0 |
| .SDL | Scene Description Language File | 3.4 |
| .SDL | Service Description Language File | 3.5 |
| .SDLPPX | SDL Trados Studio Project Package | 3.7 |
| .SDLPROJ | SDL Trados Studio Project | 3.0 |
| .SDLRPX | SDL Trados Studio Return Package | 3.3 |
| .SDLTPL | SDL Trados Studio Project Template | 3.5 |
| .SDLXLIFF | SDL Trados XLIFF Localization File | 2.0 |
| .SDM | Spatial Data Modeling Language File | 1.7 |
| .SDM | StarOffice Mail Message | 3.6 |
| .SDM | Statistica Workspace | 3.0 |
| .SDN | Shareware Distributors Network File | 2.3 |
| .SDO | Signed Document | 3.0 |
| .SDOC | Satra Khmer Document | 3.2 |
| .SDOC | Sealed Word Document | 3.6 |
| .SDOC | Samsung Notes Note | 3.5 |
| .SDOCX | Samsung Notes Note | 3.6 |
| .SDP | Session Description Protocol File | 3.0 |
| .SDP | StarOffice Presentation File | 2.0 |
| .SDR | SmartDraw Drawing | 3.1 |
| .SDR | Dell Support File | 3.7 |
| .SDS | MIDI Sample Dump Standard File | 4.1 |
| .SDS | OpenOffice Chart | 3.7 |
| .SDS | SDS Apps Data File | 3.3 |
| .SDS | HMI or Controller Configuration File | 2.0 |
| .SDSK | SafeHouse Private Storage Volume | 3.7 |
| .SDT | SmartDraw Template File | 3.0 |
| .SDT | Grand Theft Auto 3 Audio File | 3.0 |
| .SDT | Electronic Arts Sound Data File | 4.1 |
| .SDT | Siemens Desktop Theme File | 3.7 |
| .SDTID | SecurID Soft Token File | 3.8 |
| .SDV | Studio DV Project File | 3.0 |
| .SDW | StarOffice Writer Text Document | 2.4 |
| .SDW | MrSID World File | 3.1 |
| .SDX | Sample MIDI Dump Exchange | 4.1 |
| .SDX | Kivuto Secure Download Manager File | 3.6 |
| .SDX | StarMoney User Database File | 4.0 |
| .SDY | StarMoney User Database File | 3.0 |
| .SDZ | Spring Content Package | 4.0 |
| .SDZ | NCI Compressed Database | 2.0 |
| .SDZ | FANTOM Sound Pack | 2.0 |
| .SE | Shuttle Document | 3.4 |
| .SE1 | Swiss Ephemeris Data File | 4.5 |
| .SEA | Self-Extracting Archive | 3.2 |
| .SEAM | Seam Framework Java Servlet File | 3.8 |
| .SEARCH-MS | Windows Saved Search File | 4.1 |
| .SEARCHCONNECTOR-MS | Windows Search Connector File | 4.2 |
| .SEB | Safe Exam Browser Configuration File | 3.5 |
| .SEC | PGP Secret Key Ring | 3.8 |
| .SEC | GuinXell Video File | 2.9 |
| .SEC | Samsung Security Video File | 2.9 |
| .SECURE | Septium Secure Document | 2.8 |
| .SECURITYSETTINGS | Alpha Five Security Settings File | 3.0 |
| .SED | Sed Script | 3.2 |
| .SED | IExpress Self Extraction Directive File | 4.2 |
| .SED | Nintendo 3DS System Key | 3.6 |
| .SEDPRJ | Slideshow Studio Elements Project | 3.5 |
| .SEED | Linux Preseed File | 3.3 |
| .SEED | SEED Data File | 1.5 |
| .SEESTYLE | Coda Style Sheet File | 2.7 |
| .SEF | Encryptafile Signature File | 4.3 |
| .SEF | Password Manager Container File | 1.8 |
| .SEFW | Secure Element Firmware | 3.0 |
| .SEG | Eragon Audio File | 2.5 |
| .SEGY | SEG-Y Data File | 3.0 |
| .SEL | LinkOne Selection List File | 3.0 |
| .SELECTIONPORTFOLIOLIBRARY | Painter Selection Portfolio Library | 2.0 |
| .SELF | Signed Executable and Linkable Format | 2.3 |
| .SEM | Alpha Five Set Data Dictionary Memo File | 3.1 |
| .SEN | Scifer Internal Header Archive | 2.0 |
| .SEN | SenTest Data File | 3.5 |
| .SEO | SEO Note File | 3.4 |
| .SEP | Separated Image File | 2.3 |
| .SEPLUGIN | AppleScript Editor Plug-in | 3.5 |
| .SEQ | DNA Sequence Text File | 3.1 |
| .SEQ | PowerTracks Pro Audio Project File | 3.2 |
| .SEQ | NorPix StreamPix Sequence | 2.7 |
| .SEQ | Tiertex Limited SEQ Video File | 2.3 |
| .SEQU | Adobe Acrobat Sequence File | 3.6 |
| .SEQUENCE | Online Sequencer Sequence | 4.0 |
| .SER | GeneMapper Project File | 1.9 |
| .SER | Astronomical Capture Video File | 3.9 |
| .SERATO-STEMS | Serato Studio Stems File | 3.0 |
| .SERVER | MySQL Server Script | 3.7 |
| .SERVICE | Systemd Service Unit File | 4.3 |
| .SES | Audition Session (Legacy) | 2.8 |
| .SES | Patran Session File | 3.3 |
| .SESSION | CATIA 4 Session File | 3.3 |
| .SESSION | Mozilla Firefox Session File | 2.6 |
| .SESSION | iOS Session Log | 3.0 |
| .SESX | Audition Session | 3.8 |
| .SET | Settings File | 4.3 |
| .SET | Document Library Property Set File | 4.3 |
| .SET | Alpha Five Set Data Dictionary File | 4.3 |
| .SET | Grand Theft Auto Settings File | 4.0 |
| .SETTINGCONTENT-MS | Windows Settings File | 3.6 |
| .SETTINGS | Visual Studio Settings File | 4.2 |
| .SETTINGS | iConomy Settings | 3.2 |
| .SETUP | CryENGINE Character Setup File | 3.4 |
| .SEW | Home Embroidery Format | 3.3 |
| .SEX | Alpha Five Set Data Dictionary Index File | 4.0 |
| .SF | IRCAM Sound File | 3.4 |
| .SF | Minecraft JAR Signature File | 4.1 |
| .SF | APK Digital Signature | 2.0 |
| .SF2 | SoundFont 2 Sound Bank | 4.1 |
| .SF3 | Scaffold Experiment | 3.5 |
| .SFAP0 | Sound Forge Pro Audio Proxy File | 2.6 |
| .SFAR | Mass Effect 3 DLC File | 4.5 |
| .SFARK | Compressed SoundFont Archive | 3.5 |
| .SFAS | Sound Forge Audio Studio Project | 3.0 |
| .SFB | PlayStation 3 Disc Data File | 4.2 |
| .SFC | Motic Microscope Image | 3.3 |
| .SFC | Creatures Saved Game | 3.0 |
| .SFC | Super Famicom ROM | 4.1 |
| .SFCACHE | ReadyBoost Cache File | 4.1 |
| .SFD | Sofdec Dreamcast Movie | 4.1 |
| .SFD | Spline Font Database | 4.0 |
| .SFD | MagicScore Maestro Score File | 1.3 |
| .SFERA | Sfera 360° File | 3.4 |
| .SFF | Structured Fax File | 3.0 |
| .SFF | M.U.G.E.N Sprite File | 4.3 |
| .SFF | Standard Flowgram Format File | 4.2 |
| .SFG | Synfig Studio Compressed Project | 4.2 |
| .SFI | SafeFolder Encrypted File | 3.3 |
| .SFK | Sound Forge Pro Audio Peak File | 4.0 |
| .SFL | Sound Forge Pro Sound Data File | 3.8 |
| .SFM | S Memo File | 3.5 |
| .SFO | CuteFTP Search File | 3.9 |
| .SFO | PSP Game Parameters File | 4.1 |
| .SFP | Soft Font Printer File | 3.2 |
| .SFPACK | Packed SoundFont File | 3.8 |
| .SFS | Squashfs File Archive | 3.7 |
| .SFS | SFX Sample File | 2.1 |
| .SFS | Kerbal Space Program Save File | 3.8 |
| .SFT | Microsoft App-V Sequencer File | 3.5 |
| .SFT | ChiWriter Screen Font | 1.0 |
| .SFV | Simple File Verification File | 4.0 |
| .SFVIDCAP | Sonic Foundry Video Capture File | 3.5 |
| .SFW | Seattle FilmWorks Image | 2.5 |
| .SFW | Sound Forge Pro Workspace | 2.0 |
| .SFX | Windows Self-extracting Archive | 3.8 |
| .SFX | SoundFX Audio File | 3.9 |
| .SFX | Blood Sound Properties | 2.3 |
| .SFZ | SFZ Sample Definition File | 3.0 |
| .SG | SG-1000 Game ROM File | 4.7 |
| .SG0 | Humongous Entertainment Game Save File | 4.0 |
| .SGA | Relic Entertainment Game Archive | 3.5 |
| .SGAA | Aleph One Saved Game | 2.8 |
| .SGB | Super Game Boy ROM File | 2.3 |
| .SGB | Dawn of War Map File | 3.3 |
| .SGD | GeneSnap Image File | 2.8 |
| .SGF | Smart Game Format File | 3.0 |
| .SGI | Silicon Graphics Image | 2.2 |
| .SGM | SGML File | 3.3 |
| .SGM | VisualBoyAdvance Saved Game | 3.8 |
| .SGM | Starpoint Gemini 2 Mod Package | 3.0 |
| .SGML | Standard Generalized Markup Language File | 2.5 |
| .SGN | Slax Boot File | 1.5 |
| .SGN | Signet Bureau DRM File | 3.4 |
| .SGP | MP3 Audio Mixer Sound Group Project | 3.8 |
| .SGPBPR | Baltie Program | 2.0 |
| .SGPBPRJ | Baltie Project | 3.0 |
| .SGPSC | Baltie Scene | 3.0 |
| .SGR | SimCity 4 Graphics Rules File | 3.7 |
| .SGR | SGR Genome Data File | 3.6 |
| .SGT | SPSS Chart Template | 2.7 |
| .SGT | ShareGate Template | 2.0 |
| .SGTP | Simon Tatham's Puzzles Saved Game | 3.0 |
| .SGW | n-Track Studio Packed Song Project | 2.0 |
| .SGY | SEG-Y Data File | 3.1 |
| .SGZ | SigzaLock Encrypted File | 2.7 |
| .SH | Bash Shell Script | 3.9 |
| .SH | Unix Shell Archive | 3.6 |
| .SH2 | Stronghold 2 Saved Game | 2.7 |
| .SH3D | Sweet Home 3D Design | 4.0 |
| .SH3F | Sweet Home 3D Model Library | 3.8 |
| .SH3L | Sweet Home 3D Language File | 3.5 |
| .SHA | GodMode9 SHA SysNAND Crosscheck File | 4.3 |
| .SHA1 | SHA-1 Hash File | 3.0 |
| .SHA256 | FileVerifier++ SHA-256 Hashes File | 3.5 |
| .SHA512 | SHA 512 Hash File | 3.3 |
| .SHADER | Quake 3 Engine Shader File | 3.4 |
| .SHADER | Godot Engine Shader File | 4.5 |
| .SHADER | Unity Shader Asset | 3.0 |
| .SHAPES | Pixelmator Pro Shapes | 4.0 |
| .SHAPR | Shapr3D Model | 4.0 |
| .SHAR | Unix Shar Archive | 3.5 |
| .SHB | Windows Document Shortcut | 3.8 |
| .SHBIN | Nintendo 3DS Shader Binary File | 4.0 |
| .SHC | Adobe Photoshop Contours File | 4.3 |
| .SHC | FreeCommander Custom Shortcuts File | 1.0 |
| .SHD | Windows Print Job Shadow File | 3.6 |
| .SHED | Lawnchair 2 Home Screen Backup | 2.0 |
| .SHFT | Shift Work Calendar Data File | 2.0 |
| .SHG | Segmented Hyper-Graphic | 2.7 |
| .SHH | Adobe Photoshop Shadow/Highlight Settings file | 2.2 |
| .SHIM | Scoop Shim File | 3.3 |
| .SHIPWORLD | Starbound Player Ship File | 3.5 |
| .SHK | ShrinkIt Archive | 3.0 |
| .SHN | Shorten Compressed Audio File | 3.3 |
| .SHORTCUT | Asutype Shortcut | 2.3 |
| .SHORTCUT | Apple Shortcuts Shortcut | 4.0 |
| .SHOW | Thinkfree Office NEO Show Document | 2.8 |
| .SHP | 3D Studio Shape | 3.6 |
| .SHP | ESRI Shapefile | 3.0 |
| .SHPA | Aleph One Shape File | 3.7 |
| .SHPROJ | Visual Studio Code Sharing App Project | 2.0 |
| .SHR | Unix Shell Archive File | 2.8 |
| .SHS | Microsoft Scrap File | 3.6 |
| .SHSH | iPhone/iPod Touch SHSH Blob File | 3.5 |
| .SHSH2 | iOS SHSH Blob | 4.3 |
| .SHT | HTML File with Server Side Includes | 3.5 |
| .SHTM | HTML Server Side Include File | 3.3 |
| .SHTML | Server Side Include HTML File | 3.7 |
| .SHV | Husqvarna Viking Embroidery File | 2.3 |
| .SHW | Corel Presentation | 2.6 |
| .SHW | MagicQ Show File | 3.0 |
| .SHX | Shapefile Index File | 2.8 |
| .SHX | Motorola Flash Superfile | 3.0 |
| .SHX | AutoCAD Compiled Shape File | 3.6 |
| .SHY | ShyFile Encrypted File | 3.0 |
| .SI | Softimage Image File | 2.6 |
| .SI | Interleaf Archive | 3.6 |
| .SIA | Sia Metadata File | 3.5 |
| .SIA | Spin It Again Track Data File | 2.0 |
| .SIB | Sibelius Score | 3.7 |
| .SID | MrSID Image | 3.4 |
| .SID | SID Audio | 3.3 |
| .SID | Steam Game Data Backup File | 3.7 |
| .SID | ScanIt Document | 2.0 |
| .SIDB | iTunes Authorization Data File | 2.0 |
| .SIDD | iTunes Authorization Data File | 3.3 |
| .SIDECAR | Blackmagic RAW Video Sidecar File | 3.8 |
| .SIDN | iTunes Authorization Data File | 3.3 |
| .SIDX | StuffIt Archive Index File | 2.0 |
| .SIF | Windows Setup Information File | 4.3 |
| .SIF | Synfig Studio Project | 2.5 |
| .SIFZ | Synfig Studio Compressed Project | 3.6 |
| .SIG | Signature File | 3.6 |
| .SIG | Broderbund Sign File | 3.5 |
| .SIG | QuickTac SIG File | 3.4 |
| .SIGNATURE | e-Filing Digital Signature File | 3.8 |
| .SII | SCS Software Game Data | 4.3 |
| .SIM | Aurora Image | 2.6 |
| .SIM | SAP Tutor File | 3.2 |
| .SIM | Steam Game Backup Information File | 3.8 |
| .SIM | The Sims 3 Sim File | 2.8 |
| .SIM | LogikSim Simulation File | 2.0 |
| .SIM | SimLab Composer Scene | 4.3 |
| .SIM | Stagecast Creator Simulation | 2.0 |
| .SIMG | Synclavier Disk Image File | 2.5 |
| .SIMP | Software Ideas Modeler Project | 2.5 |
| .SIMS2PACK | Downloaded Sims 2 Package File | 3.9 |
| .SIMS3 | The Sims 3 Game Save File | 4.4 |
| .SIMS3.BACKUP | The Sims 3 Game Save Backup File | 4.4 |
| .SIMS3.BAD | The Sims 3 Failed Game Save File | 4.0 |
| .SIMS3PACK | The Sims 3 Package File | 4.6 |
| .SIN | Sony Xperia Firmware File | 3.0 |
| .SINF | iOS Application Archive File | 3.0 |
| .SIP | SIP Specification File | 3.6 |
| .SIP | ScopeTrax Compressed Sample | 1.5 |
| .SIP | SocksIP Tunnel Configuration | 3.8 |
| .SIPA | Smint.io Portal Archive | 2.0 |
| .SIS | Symbian Installation File | 4.0 |
| .SIS | Steam Game Backup Information File | 4.0 |
| .SIS | Sisma Database File | 3.8 |
| .SIS | arivis ImageCore File | 3.8 |
| .SIS.DM | Ovi Store DRM-Protected Application | 4.3 |
| .SISX | Symbian OS 9.1+ Installation File | 3.8 |
| .SISX.DM | Nokia Ovi Store DRM-Protected Application | 3.7 |
| .SIT | StuffIt Archive | 4.1 |
| .SITE | GoLive Website Project File | 3.9 |
| .SITEMAP | ASP.NET Site Map File | 3.3 |
| .SITES | iWeb Website Design Project | 3.0 |
| .SITES2 | iWeb Website Design Project | 3.6 |
| .SITX | StuffIt X Archive | 3.6 |
| .SIV | Silicon Imaging Video File | 3.7 |
| .SIX | Sixel Image | 4.0 |
| .SIZE | Need for Speed Most Wanted Android OBB Size File | 1.0 |
| .SJ | Arduino Science Journal Experiment | 3.0 |
| .SJAVA | Synchronous Java File | 2.7 |
| .SJD | Scrapbook Factory Journal File | 3.0 |
| .SJPG | Sealed JPG File | 3.0 |
| .SJR | ScratchJr Project File | 4.7 |
| .SK | Safari History Index File | 3.1 |
| .SK | Skript File | 3.8 |
| .SK | Skencil Drawing | 3.5 |
| .SK1 | sK1 Vector Graphic File | 3.0 |
| .SK2 | ChemSketch Drawing | 3.0 |
| .SKB | SketchUp Backup Document | 3.7 |
| .SKBA | SketchBook Pro Animation File | 4.0 |
| .SKC | SideKick Card File | 2.0 |
| .SKCARD | Starfish Sidekick Card File | 1.5 |
| .SKD | Max Payne Skin Data File | 1.5 |
| .SKEIN | Skein XML File | 2.3 |
| .SKEL | Animation Skeleton | 1.0 |
| .SKETCH | Sketch Drawing | 3.2 |
| .SKETCHPAD | Sketchpad Drawing File | 2.6 |
| .SKF | AutoSketch Drawing | 3.9 |
| .SKI | Motorola Phone Skin File | 3.0 |
| .SKIM | Skim Notes File | 2.0 |
| .SKIN | InstallShield Skin File | 4.0 |
| .SKIN | ASP.NET Skin File | 4.1 |
| .SKINDEX | Mail Index File | 3.0 |
| .SKITCH | Skitch Image | 4.0 |
| .SKL | Maya Skeleton File | 3.0 |
| .SKM | SketchUp Material File | 3.0 |
| .SKM | SK Telecom 3GP Video | 2.0 |
| .SKN | Symbian OS Skin File | 2.6 |
| .SKN | Avant Browser Skin File | 2.7 |
| .SKP | SketchUp Document | 3.9 |
| .SKR | PGP Private Keyring | 3.8 |
| .SKS | SpriteKit Scene | 4.0 |
| .SKSE | Skyrim Script Extender Save File | 3.1 |
| .SKTZ | Sony Sketch Drawing | 4.0 |
| .SKV | Semicolon Separated Values File | 3.0 |
| .SKV | XLANG Schedule Drawing File | 4.0 |
| .SKX | XLANG Schedule File | 2.5 |
| .SKY | Emulated Skylander Character or Item | 2.5 |
| .SKY | Photoshop Sky Replacement Preset | 3.0 |
| .SKYPECHATSTYLE | Chat Style File | 4.0 |
| .SKYPEEMOTICONSET | Skype Emoticon Set File | 2.6 |
| .SKZ | SuperKaramba Theme | 4.3 |
| .SL | Software License File | 3.1 |
| .SLA | Scribus Document | 3.2 |
| .SLA.GZ | Scribus Compressed Document | 3.0 |
| .SLANG | Slang Source Code | 2.0 |
| .SLB | AutoCAD Slide Library | 2.2 |
| .SLBK | Smart Launcher Home Screen Backup | 3.0 |
| .SLC | Sokoban Level Collection File | 2.0 |
| .SLD | AutoCAD Slide File | 4.0 |
| .SLD | Styled Layer Descriptor File | 3.0 |
| .SLDASM | SolidWorks Assembly | 3.8 |
| .SLDDRT | SolidWorks Drawing Sheet | 3.8 |
| .SLDDRW | SolidWorks Drawing | 3.3 |
| .SLDPRT | SolidWorks Part | 3.8 |
| .SLDTM | SDL Translation Memory File | 3.0 |
| .SLE | Sisulizer Package File | 2.6 |
| .SLE | Steganos Safe Encrypted Drive | 2.0 |
| .SLF | Symantec License File | 3.8 |
| .SLI | OMSI Spline Configuration File | 4.0 |
| .SLK | Symbolic Link File | 3.3 |
| .SLL | Static Link Library | 2.8 |
| .SLN | Visual Studio Solution File | 3.8 |
| .SLOGO | StarLogo Project File | 4.0 |
| .SLOGT | StarLogo Project Template | 2.0 |
| .SLP | Sisulizer Project File | 3.5 |
| .SLP | SpectraLayers Pro Project | 4.0 |
| .SLP | Stormworks Mod File | 2.0 |
| .SLP | Project Slippi Replay | 4.0 |
| .SLS | Image Playlist | 2.2 |
| .SLST | Game Data File | 3.0 |
| .SLT | Mozilla User Profile Folder | 3.6 |
| .SLTNG | StarLogo TNG Project File | 3.5 |
| .SLUPKG-MS | XrML Digital License Package | 2.4 |
| .SLWREPLAY | Salwyrr Launcher Replay | 4.0 |
| .SLX | SpectraLayers Pro Project | 3.0 |
| .SLX | MathWorks Simulink Model File | 3.5 |
| .SM | StepMania Song File | 3.9 |
| .SM | SMath Studio Document | 4.8 |
| .SM | Space Engine 3D Mesh File | 3.0 |
| .SM | SpaceMonger Scan File | 3.5 |
| .SMA | AMX Mod Plugin Source File | 3.6 |
| .SMA | SmartMusic Accompaniment File | 3.0 |
| .SMA | SmartPlant Enhanced Report | 2.0 |
| .SMALI | Android Smali Assembly Language File | 3.9 |
| .SMART-HEALTH-CARD | SMART Health Card | 3.0 |
| .SMB | Autodesk Shape Manager Binary File | 4.3 |
| .SMBL | Super Meat Boy Level File | 3.7 |
| .SMC | Super Nintendo Game ROM | 4.3 |
| .SMC | SmartMedia Card Data File | 4.3 |
| .SMC | Solibri Model Checker File | 3.0 |
| .SMD | Sega Mega Drive ROM | 4.0 |
| .SMD | Valve Studiomdl Data File | 4.2 |
| .SMDH | 3DS Game Metadata | 3.5 |
| .SMDL | Skinned Model | 1.0 |
| .SME | SmartEncryptor Encrypted File | 2.1 |
| .SME | Samsung Mobile Backup File | 2.8 |
| .SMEM | Smart Switch Text Message Backup | 4.0 |
| .SMENT | StarMade Entity File | 3.5 |
| .SMF | Standard MIDI File | 3.6 |
| .SMF | Serif Metafile | 3.2 |
| .SMF | StarMath Formula File | 4.0 |
| .SMF | SkinMagic Toolkit File | 3.0 |
| .SMG | SolidWorks Composer File | 2.1 |
| .SMI | Self-Mounting Disk Image | 3.2 |
| .SMI | SMIL Presentation | 2.8 |
| .SMI | SAMI Subtitles File | 2.4 |
| .SMIL | SMIL Presentation File | 3.0 |
| .SMK | Smacker Compressed Movie File | 3.0 |
| .SML | SMIL Slideshow Presentation | 1.6 |
| .SML | ARC/INFO Simple Macro Language File | 2.5 |
| .SMM | Ami Pro Macro | 1.5 |
| .SMM | Samsung Memo File | 2.9 |
| .SMM | Map Manager Schema File | 2.5 |
| .SMMPROFILE | Satisfactory Mod Manager Profile | 3.0 |
| .SMMSTORE | Local Mind Map Store File | 1.3 |
| .SMMX | SimpleMind Mind Map | 3.8 |
| .SMO | Sumotori Dreams Arena File | 2.5 |
| .SMOD | Stonehearth Mod File | 2.3 |
| .SMP | SampleVision Audio Sample Format | 2.5 |
| .SMP | Xionics SMP Image | 2.3 |
| .SMP | IDRISI Palette File | 2.6 |
| .SMP | SmartMusic Performance File | 2.8 |
| .SMP | SmilePlant Project Data File | 3.5 |
| .SMP | PhotoImpact Gallery | 2.0 |
| .SMP | ScrapeMap File | 3.7 |
| .SMP | AudioCuentos Audiobook | 4.3 |
| .SMPD | Sc2gears Mouse Print Data File | 2.8 |
| .SMPF | Sprite Monkey Project | 4.0 |
| .SMPKG | SmartMusic Package File | 3.0 |
| .SMPX | SmartMusic Accompaniment File | 2.7 |
| .SMRAILROADSSAVEDGAME | Sid Meier's Railroads! Saved Game | 4.3 |
| .SMRD | Adobe InDesign Filter File | 2.0 |
| .SMS | Sega Master System ROM | 3.8 |
| .SMS | Exported SMS Text Message | 3.1 |
| .SMSEC | StarMade Sector File | 2.0 |
| .SMSKIN | StarMade Skin File | 1.7 |
| .SMT | Samsung Theme File | 3.5 |
| .SMT | Autodesk Shape Manager Text File | 3.0 |
| .SMV | VideoLink Mail Video File | 3.8 |
| .SMV | Smokeview Simulation Data | 3.5 |
| .SMWT | Adobe InDesign Filter | 3.3 |
| .SMX | SmartMusic XML File | 3.1 |
| .SMX | SourceMod Plug-in | 2.0 |
| .SMZ | SMath Studio Compressed Document | 2.6 |
| .SMZIP | StepMania Package | 3.8 |
| .SN1 | Drive Snapshot Backup Continuation 1 | 3.8 |
| .SN2 | Drive Snapshot Backup Continuation 2 | 3.3 |
| .SNA | Drive Snapshot Primary Backup File | 3.8 |
| .SNA | NO$GBA Snapshot File | 3.0 |
| .SNAG | Snagit for Windows Capture | 3.8 |
| .SNAGITSTAMPS | Snagit Stamp Archive | 2.5 |
| .SNAGPROJ | Snagit for Mac Capture | 3.2 |
| .SNAGSTYLES | Snagit Style Archive | 3.0 |
| .SNAGTHEME | Snagit Theme | 3.0 |
| .SNAGX | Snagit 2022 Capture | 4.2 |
| .SNAIL | Snail IDE Project | 3.3 |
| .SNAP | Snap Application Package | 3.6 |
| .SNAPFIRESHOW | Corel SnapfireShow File | 2.7 |
| .SNAPPY | Snappy Compressed File | 3.1 |
| .SNAPSHOT | VMware ThinApp Snapshot File | 3.9 |
| .SNB | S Note File | 3.5 |
| .SNB | Shanda Bambook eBook | 2.9 |
| .SNC | Sonic Adventure DX Game Save Data | 3.3 |
| .SND | Sound File | 2.6 |
| .SND | Macintosh Sound Resource | 2.2 |
| .SND | Akai MPC Sample | 2.8 |
| .SND | M.U.G.E.N Sound File | 3.2 |
| .SNDA | Aleph One Sound File | 1.0 |
| .SNETLVL | Super Mario Maker.NET Level | 2.7 |
| .SNF | Starry Night Pro Document | 4.0 |
| .SNG | MIDI Song | 3.4 |
| .SNG | Korg Trinity Song File | 3.9 |
| .SNG | n-Track Studio Song Project | 3.0 |
| .SNGX | ChordWizard Song | 4.0 |
| .SNIP | Windows XP Tablet PC Snipping Tool Image | 1.0 |
| .SNIPPET | Visual Studio IntelliSense Code Snippet | 2.0 |
| .SNK | Strong Name Key File | 4.2 |
| .SNM | Netscape Mail Index | 3.5 |
| .SNM | Smush Animation | 2.0 |
| .SNMM | Smart Switch Notes Backup | 3.3 |
| .SNO | Starry Night Pro Data File | 3.3 |
| .SNP | Access Report Snapshot | 3.1 |
| .SNR | EA Sound Resource | 2.0 |
| .SNS | SNS Video Game Audio File | 3.1 |
| .SNS | Save-N-Sync Project File | 2.3 |
| .SNSF | Super NES Sound Format File | 2.3 |
| .SNT | Sticky Notes File | 3.3 |
| .SNTM | SolarWinds Network Topology Mapper Map | 3.0 |
| .SNX | PISnoop Workspace File | 2.3 |
| .SNZ | Snappy Compressed File | 2.5 |
| .SO | Shared Library | 3.8 |
| .SO-ABI | Cocoa AbiWord Plug-in | 2.3 |
| .SO.0 | Unix Shared Library File | 2.9 |
| .SOB | OpenOffice.org Impress Bitmap Styles File | 2.5 |
| .SOCK | Unix Domain Socket File | 4.0 |
| .SOD | Spear of Destiny Data File | 3.5 |
| .SOE | Star Wars: Shadows of the Empire Save File | 4.0 |
| .SOEPSX | Player Studio Viewer Item File | 2.5 |
| .SOL | Flash Local Shared Object File | 3.9 |
| .SOL | Solidity Script | 3.9 |
| .SOL | Sierra On-Line Audio File | 3.5 |
| .SOLITAIRESAVE-MS | Microsoft Solitaire Saved Game | 3.2 |
| .SON | Beam Software SIFF Audio File | 2.0 |
| .SONG | AudioSauna Song File | 3.2 |
| .SONGDATA | jOeSU Level Data | 1.5 |
| .SONIC | DigitalMedia Project File | 3.7 |
| .SOPT | Synclavier Optical Disk Image File | 2.3 |
| .SOR | Standard OTDR Record File | 3.4 |
| .SOU | SBStudio II Sound File | 3.5 |
| .SOUNDPACK | SoundPackager Sound Package | 3.7 |
| .SOUNDS | Quake 3 Engine Sound Definition File | 3.7 |
| .SOUNDSCRIPT | Rigs of Rods Sound Script File | 2.8 |
| .SOURCE | Source Code File | 2.0 |
| .SOW | Descent ARJ Game Data Archive | 1.5 |
| .SP | SignPlot Traffic Sign File | 3.3 |
| .SP | Simplexety Parameters File | 3.2 |
| .SP | Windows XP Service Pack 1 Update File | 3.5 |
| .SP | SourcePawn Script | 2.0 |
| .SP1 | Windows XP Service Pack 1 Identification File | 2.5 |
| .SP2 | Super Ball 2 Level File | 2.3 |
| .SP2 | Windows XP Service Pack 2 Identification File | 1.5 |
| .SP3 | Windows XP Service Pack 3 Identification File | 3.9 |
| .SP3 | NGS SP3 File | 4.2 |
| .SP4 | SuperCard 4 Player Project | 2.0 |
| .SP45 | SuperCard Player File | 2.7 |
| .SPA | MikuMikuDance Sphere Mapping File | 3.5 |
| .SPA | Nintendo DS Particle File | 2.3 |
| .SPA | Spotify Application | 3.6 |
| .SPA | Spectrum Analysis Measurement | 3.5 |
| .SPANISHER | Spanisher Word File | 4.0 |
| .SPARC | Skype Plugin Archive | 4.0 |
| .SPARKLE | Sparkle Website Project | 3.5 |
| .SPARSEBUNDLE | Mac OS X Sparse Bundle | 2.3 |
| .SPARSEFS | BlueStacks Data Folder | 4.0 |
| .SPARSEIMAGE | Mac OS X Sparse Image | 3.0 |
| .SPASS | Samsung Pass Backup | 4.3 |
| .SPB | Samsung Kies Phonebook File | 3.8 |
| .SPB | Flight Simulator Mission File | 3.9 |
| .SPC | Spectrum 512 Compressed Image | 2.5 |
| .SPC | SNES Soundtrack File | 4.2 |
| .SPC | Software Publisher Certificate File | 3.9 |
| .SPD | Sealed Acrobat Document | 3.0 |
| .SPD | SPSS Custom Dialog File | 2.9 |
| .SPD | Form·Z Suspended Render File | 3.3 |
| .SPD | S Note File | 3.7 |
| .SPDF | Sealed PDF File | 3.3 |
| .SPE | WinSpec CCD Capture File | 3.1 |
| .SPE | SPSS Extension | 3.1 |
| .SPEC | RPM Specification File | 2.8 |
| .SPECCY | Speccy Snapshot | 4.5 |
| .SPECTRUS | Spectrus Dataset | 2.0 |
| .SPF | Slingplayer Favorites File | 3.0 |
| .SPF | ShadowProtect Full Backup File | 4.0 |
| .SPFX | Squeeze Presets File | 2.0 |
| .SPG | TCP Optimizer Backup File | 4.2 |
| .SPH | MikuMikuDance Sphere Mapping File | 3.5 |
| .SPH | NIST SPHERE Audio File | 3.7 |
| .SPI | ShadowProtect Incremental Backup File | 3.7 |
| .SPIDERSOLITAIRESAVE-MS | Microsoft Spider Solitaire Saved Game | 3.6 |
| .SPIFF | Still Picture Interchange File Format | 3.0 |
| .SPJ | Microsoft ICE Panorama Project | 3.0 |
| .SPJ | SPSS Production Job File | 2.7 |
| .SPJ | PhotoStage Slideshow Project | 3.8 |
| .SPJ | Saturn Project | 2.0 |
| .SPK | Bright Spark Document | 3.0 |
| .SPK | Deer Hunter Map File | 3.4 |
| .SPK | Synology Package | 3.3 |
| .SPK | Artspeak Source File | 2.5 |
| .SPK | DroidScript Project | 2.0 |
| .SPL | FutureSplash Animation | 3.3 |
| .SPL | Windows Print Spool File | 3.1 |
| .SPL | sPlan Schematic Diagram File | 3.3 |
| .SPL | Splunk Application Package | 3.0 |
| .SPL | Vim Spelling Dictionary | 2.0 |
| .SPL | Shakespeare Programming Language Source Code | 3.0 |
| .SPL7 | sPlan 7 Schematic Diagram File | 3.3 |
| .SPLANE | Simple Planes Plane File | 3.9 |
| .SPLINE | Spline 3D Model | 3.0 |
| .SPLIT | Archiver Split File | 2.8 |
| .SPM | Salt Package Manager Formula Package | 2.7 |
| .SPM | SuperTuxKart 3D Model | 4.3 |
| .SPO | SPSS Statistical Data Output File | 3.2 |
| .SPO | Spore Saved Game | 3.2 |
| .SPOREMOD | Spore Mod | 4.0 |
| .SPP | Serif PhotoPlus Picture File | 3.6 |
| .SPP | Substance Painter Project | 3.5 |
| .SPPACK | SPPack Sound Sample | 3.0 |
| .SPPKG | Spplice Package | 4.0 |
| .SPQ | SPSS Database Query File | 3.0 |
| .SPR | FoxPro Generated Screen File | 3.4 |
| .SPR | Half-Life Sprite | 4.0 |
| .SPRG | Synclavier Program File | 2.5 |
| .SPRITE | SuperTux Sprite File | 2.7 |
| .SPRITE | Scratch Sprite File | 4.1 |
| .SPRITE2 | Scratch 2.0 Sprite File | 4.3 |
| .SPRITE3 | Scratch 3.0 Sprite File | 4.2 |
| .SPRX | Signed PlayStation Relocatable Executable | 3.0 |
| .SPRYZIP | LumaFusion Legacy Project | 2.5 |
| .SPS | SPSS Program File | 3.4 |
| .SPS | Quake 3 Engine Speaker Definition File | 2.0 |
| .SPS | SyncBack Settings File | 3.0 |
| .SPS | Sharkport PS2 Save File | 1.5 |
| .SPT | ESPL Programming File | 4.2 |
| .SPT | TM File Packer Compressed Archive | 3.4 |
| .SPT | SpeedTree Tree Data File | 3.8 |
| .SPT | Cypress Semiconductor Script | 3.6 |
| .SPT | AQW Trainer File | 3.6 |
| .SPT | RadScript Script | 1.0 |
| .SPU | Spectrum 512 Image | 2.3 |
| .SPUB | Disc Cover File | 2.0 |
| .SPUB | Swift Publisher Document | 2.5 |
| .SPUI | Spore User Interface Texture | 2.0 |
| .SPV | SPSS Output Document | 3.0 |
| .SPV | SPIR-V Module | 3.8 |
| .SPVCHAIN | MultiCoin Wallet File | 2.0 |
| .SPWN | SPWN Geometry Dash Trigger Modifier | 4.7 |
| .SPX | Ogg Vorbis Speex File | 2.4 |
| .SPX | System Profiler XML Report | 2.2 |
| .SPX | Pfaff Stitch Pattern File | 3.0 |
| .SPZ | Half-Life PS2 Sprite | 2.0 |
| .SQ | Sysquake Program | 4.0 |
| .SQB | SQL Backup SQL Server Backup File | 4.1 |
| .SQB | Super Smash Bros. Sound Sequence Binary File | 1.0 |
| .SQD | SQ Data File | 3.0 |
| .SQD | Configuration Settings File | 3.3 |
| .SQF | Sothink SWF Quicker File | 3.0 |
| .SQF | ArmA Script | 3.6 |
| .SQF | Squashfs File System | 2.0 |
| .SQFS | Squash FS Bootable File | 3.5 |
| .SQL | Structured Query Language Data File | 3.9 |
| .SQLITE | SQLite Database | 3.8 |
| .SQLITE3 | SQLite 3 Database | 3.9 |
| .SQLITEDB | SQLite Database | 4.0 |
| .SQLPROJ | Visual Studio SQL Server Project | 2.5 |
| .SQM | Service Quality Monitoring File | 3.6 |
| .SQM | Operation Flashpoint Mission File | 1.8 |
| .SQR | SQL Program File | 4.0 |
| .SQUASHFS | Squashfs File System | 3.4 |
| .SQX | SQX Archive | 4.0 |
| .SQZ | Squeeze Project File | 3.4 |
| .SQZ | The Master Genealogist Backup Project | 1.0 |
| .SQZ | digitalSQZ Encrypted File | 2.0 |
| .SR | Sun Raster Graphic | 3.8 |
| .SR | Sega Genesis Collection Archive | 1.5 |
| .SR0 | SecuROM Analysis File | 4.3 |
| .SR2 | Sony RAW Image | 3.7 |
| .SR4 | AMD Ryzen Wraith Prism RGB Profile | 2.0 |
| .SRB | Sonic Robo Blast 2 Data File | 3.3 |
| .SRC | Source Code File | 3.4 |
| .SRC.RPM | Red Hat Package Manager Source File | 3.0 |
| .SRD | Sage Report Data File | 3.0 |
| .SREC | S-record File | 2.0 |
| .SREP | SuperREP Compressed File | 3.3 |
| .SRF | Sony RAW Image | 3.4 |
| .SRF | Server Response File | 3.5 |
| .SRF | Steinberg Resource File | 3.0 |
| .SRF | LightWave Surface File | 3.4 |
| .SRF | Surfer Project File | 2.9 |
| .SRF | Smaart Spectrum File | 2.0 |
| .SRF | Samsung Smart TV Recording | 3.5 |
| .SRF | Garmin Vehicle Image | 3.0 |
| .SRG | Ketron Single Registration File | 2.8 |
| .SRK | Sub Rosa Client File | 3.4 |
| .SRL | Nintendo DS ROM | 2.3 |
| .SRL | OpenSSL Security Certificate Serial Number | 3.0 |
| .SRM | Super Nintendo ROM Save | 3.7 |
| .SRP | Scrape Source Code File | 3.3 |
| .SRR | ReScene Metadata File | 3.8 |
| .SRS | Outlook Send/Receive Settings File | 2.7 |
| .SRT | SubRip Subtitle File | 3.8 |
| .SRT0 | Wii Texture Animation File | 2.4 |
| .SRW | Samsung RAW Image | 3.3 |
| .SS | SilverStripe Source Code File | 3.1 |
| .SS | SurgeScript File | 2.0 |
| .SSA | Sub Station Alpha Subtitle File | 2.7 |
| .SSA | Children of the Nile Campaign | 2.0 |
| .SSC | SourceSafe Status File | 1.8 |
| .SSC | Stellarium Script | 3.3 |
| .SSC | Celestia Solar System Catalog File | 2.8 |
| .SSC | StepMania Song File | 3.4 |
| .SSCS | Saropa Smart Copy Script | 3.3 |
| .SSD | WindowBlinds Skin File List | 4.0 |
| .SSD | Starry Night Pro Data File | 4.3 |
| .SSEQ | Synclavier Sequence File | 3.0 |
| .SSEQ | Nintendo DS Sound Sequence File | 3.8 |
| .SSF | Trimble Standard Storage Format File | 4.1 |
| .SSF | Structured Subtitle Format File | 3.8 |
| .SSF | Sogou Pinyin Method Skin | 4.0 |
| .SSF | Saturn Sound Format | 2.0 |
| .SSFLIB | Saturn Sound Format Library | 1.0 |
| .SSFREC | Super Smash Flash 2 Recording File | 4.2 |
| .SSFSAV | Super Smash Flash Saved Game File | 4.4 |
| .SSG | Sonic Robo Blast 2 Saved Game File | 3.0 |
| .SSI | Adobe Dreamweaver Server Side Include File | 3.8 |
| .SSII | ProReveal Data File | 2.5 |
| .SSIS | ProReveal Settings File | 2.0 |
| .SSK | SmartSketch 95 Document | 3.5 |
| .SSL | Sunlight ScanLibrary File | 2.0 |
| .SSL | Fallout Script | 3.3 |
| .SSL2 | Sunlight ScanLibrary 2 File | 3.4 |
| .SSLF | HLSW Shared Server List File | 4.0 |
| .SSM | Standard Streaming Metafile | 2.6 |
| .SSM | Sound Clip Archive | 3.0 |
| .SSM | Samsung S Memo File | 2.5 |
| .SSND | Synclavier Sound File | 3.5 |
| .SSOI | SSOI Ransomware Encrypted File | 2.7 |
| .SSP | Scala Server Page | 4.3 |
| .SSP | Screensaver Producer Project File | 1.8 |
| .SSP | SlideShow Creator Project File | 3.7 |
| .SSP | Serato Studio Project | 3.0 |
| .SSPQ | SSPQ Ransomware Encrypted File | 3.0 |
| .SSS | WindowBlinds Substyle File | 3.2 |
| .SSS | Coda Style Sheet File | 3.4 |
| .SST | Serialized Certificate Store File | 3.9 |
| .SST | Children of the Nile Texture | 2.4 |
| .SST | Artec Studio Project | 1.5 |
| .SSV | Seavus Secure Project File | 4.2 |
| .SSW | Sony Ericsson Firmware File | 2.5 |
| .ST | Atari ST Disk Image | 3.3 |
| .ST | Smalltalk Source Code | 3.5 |
| .ST3 | Star 3 MIDI Karaoke File | 3.0 |
| .ST4 | SuperCard Trial Project File | 3.3 |
| .ST45 | SuperCard Trial Project File | 2.0 |
| .STA | ABAQUS Status File | 2.9 |
| .STA | Adobe Photoshop Match Color Image Statistics File | 4.2 |
| .STA | MAME Saved State File | 3.5 |
| .STA | Vectorworks Design Template | 2.0 |
| .STAGE | Pokémon Type Wild Stage Data File | 2.0 |
| .STAP | Soundtrack Pro Audio Project File | 3.5 |
| .STARPAK | Titanfall 2 or Apex Legends Game Data Archive | 1.3 |
| .STARTUPINFO | E-Prime 2.0 Startup Info File | 3.3 |
| .STATE | Luminar Edit Log File | 2.0 |
| .STATE | RetroArch Game Save State | 3.4 |
| .STATS | FreeSurfer Statistics File | 4.0 |
| .STB | AutoCAD Plot Style Table File | 4.4 |
| .STBSP | Titanfall 2 or Apex Legends Map | 3.5 |
| .STC | StarOffice Calc Spreadsheet Template | 3.0 |
| .STC | Celestia Star Catalog File | 3.4 |
| .STC | Contribute Connection Key File | 3.3 |
| .STC | Shade to Manga Studio File | 1.5 |
| .STC | Siemens Theme File | 1.0 |
| .STD | Apache OpenOffice Drawing Template | 3.7 |
| .STD | CD/DVD Label Template | 3.6 |
| .STD | PROMT Translator Document | 2.6 |
| .STDL | Swift To-Do List Database | 3.6 |
| .STE | Samsung IPOLIS Image File | 1.6 |
| .STE | Dreamweaver Site Settings File | 3.3 |
| .STEAMSTART | Valve Steam Start File | 4.2 |
| .STEL | Stella Polyhedron | 4.0 |
| .STENCYL | Stencyl Game File | 4.0 |
| .STEP | STEP 3D Model | 3.5 |
| .STEX | Godot Engine 3 StreamTexture File | 3.8 |
| .STF | Microsoft Setup Table File | 2.3 |
| .STF | Exchange 2000 Server Temporary File | 4.0 |
| .STFX | SampleTank Effects Settings File | 2.0 |
| .STG | ActiveSync Backup File | 3.9 |
| .STG | Statistica Graph File | 3.0 |
| .STG | ScreenToGif Project | 2.7 |
| .STH | Lotus Domino Stash File | 3.0 |
| .STH | SampleTank User Preset Data File | 2.8 |
| .STI | StarOffice Presentation Template | 3.8 |
| .STI | SampleTank User Preset Data File | 3.7 |
| .STIP | SampleTank User Preset Instrument | 3.0 |
| .STIX | Structured Threat Information eXpression File | 2.5 |
| .STK | Pivot Animator Stick Figure | 4.0 |
| .STK | Power Vision Stock File | 2.7 |
| .STKDOODLZ | Sticker Doodle Sticker | 3.3 |
| .STL | Certificate Trust List | 2.8 |
| .STL | Fireworks Style Library | 2.4 |
| .STL | Stereolithography File | 3.7 |
| .STL | European Broadcasting Union Subtitles File | 2.2 |
| .STL | SuperTux Level File | 2.7 |
| .STM | Scream Tracker 2 Module | 3.8 |
| .STM | Exchange Streaming Media File | 3.4 |
| .STM | SSI Web Page | 2.1 |
| .STM | The Powder Toy Stamp File | 3.5 |
| .STMB | Synclavier Timbre File | 1.5 |
| .STML | SSI HTML File | 3.4 |
| .STN | Genuine Fractals Image | 2.8 |
| .STO | PRO100 3D Interior Design Project | 2.4 |
| .STOP | STOP Ransomware Encrypted File | 2.0 |
| .STORMREPLAY | Heroes of the Storm Replay File | 3.4 |
| .STORY | Storyist Document | 3.8 |
| .STORYBOARD | Xcode Interface Builder Storyboard | 3.6 |
| .STORYBOARDC | Compiled Xcode Interface Builder Storyboard | 1.5 |
| .STORYISTTHEME | Storyist Application Theme File | 3.2 |
| .STORYMILL | StoryMill Project File | 2.5 |
| .STP | STEP 3D CAD File | 3.6 |
| .STP | SharePoint Template | 2.4 |
| .STP | Analysis Studio Project Information File | 1.9 |
| .STP | RoboHelp Stop List File | 2.8 |
| .STPROJ | Samsung Theme Document | 2.0 |
| .STPROJ | iAd Producer Project | 2.0 |
| .STR | dBASE Structure List Object File | 3.8 |
| .STR | Windows Screensaver File | 3.3 |
| .STR | PlayStation Video Stream | 3.9 |
| .STR | BFME2 Strings File | 3.2 |
| .STR | Kingsoft Strings File | 4.0 |
| .STR | X-Plane Object String File | 3.9 |
| .STR | YouTube Livestream Recording | 4.5 |
| .STREAMDECKAUDIO | Stream Deck Audio | 3.0 |
| .STRINGS | Text Strings File | 3.5 |
| .STRM | Stream Location File | 3.7 |
| .STRM | STRM Audio Stream File | 3.7 |
| .STS | DuoS DSEMU Saved State File | 3.4 |
| .STS | #TASK Script File | 2.3 |
| .STSG | SuperTux Saved Game | 2.7 |
| .STSKIN | Steam Skin File | 4.4 |
| .STT | Streets & Trips Map Template | 3.0 |
| .STT | Kaspersky Statistics File | 2.0 |
| .STT | SPSS Table Template | 3.0 |
| .STTPL | Samsung Theme Showcase File | 3.5 |
| .STU | Pinnacle Studio Project File | 3.5 |
| .STUDIO | Silhouette Studio Document | 2.5 |
| .STUDIO3 | Silhouette Studio Version 3 Document | 3.8 |
| .STW | StarOffice Document Template | 3.3 |
| .STW | Statistica Workbook | 2.5 |
| .STW | SampleTank User Preset Data File | 2.5 |
| .STWM | SuperTux World Map File | 2.3 |
| .STX | Scream Tracker Music Interface Kit File | 2.5 |
| .STX | Pinnacle Studio Project File | 3.6 |
| .STXT | Sealed Text File | 3.7 |
| .STY | LaTeX Style | 4.0 |
| .STY | Yamaha/Korg Keyboard Style | 4.2 |
| .STY | NewsMaker Story File | 3.2 |
| .STY | Aegisub Subtitle Styles File | 3.6 |
| .STY | Band-in-a-Box Styles File | 4.0 |
| .STYK | Stykz Stick Figure | 4.0 |
| .STYKZ | Stykz Animation | 3.2 |
| .STYLE | SketchUp Style | 4.4 |
| .STYLE | ArcGIS Style Manager File | 3.2 |
| .STYPE | Call of Duty Texture File | 3.0 |
| .STYX | ChordWizard Style | 4.0 |
| .SUA | Special Use Airspace File | 1.0 |
| .SUB | MicroDVD Subtitle File | 3.9 |
| .SUB | SubTerra Level File | 3.7 |
| .SUB | CloneCD Subchannel File | 3.8 |
| .SUB | VobSub Subtitles File | 3.0 |
| .SUBLIME-BUILD | Sublime Text Build File | 1.5 |
| .SUBLIME-KEYMAP | Sublime Text Keymap File | 2.0 |
| .SUBLIME-MENU | Sublime Text Menu File | 2.3 |
| .SUBLIME-OPTIONS | Sublime Text Options File | 3.5 |
| .SUBLIME-PACKAGE | Sublime Text Package File | 3.6 |
| .SUBLIME-PROJECT | Sublime Text Project File | 3.2 |
| .SUBLIME-SESSION | Sublime Text Session File | 2.0 |
| .SUBLIME-SETTINGS | Sublime Text Settings File | 2.0 |
| .SUBLIME-SNIPPET | Sublime Text Snippet File | 3.0 |
| .SUBLIME-THEME | Sublime Text Theme File | 3.5 |
| .SUBLIME-WORKSPACE | Sublime Text Workspace File | 2.0 |
| .SUB_LOC | Submachine Universe Location | 4.0 |
| .SUCK | SiteSucker Website File | 2.0 |
| .SUD | Super Project Analyzer File | 3.6 |
| .SUD | Sudoku Puzzle File | 2.5 |
| .SUF | Ccrypt Encrypted File | 4.3 |
| .SUGAR | Espresso Plug-in | 2.6 |
| .SUI | StarSplatter User Interface File | 2.3 |
| .SUIT | Macintosh Font Suitcase | 2.3 |
| .SUM | Garmin Checksum File | 2.8 |
| .SUM | Scilab Unit Operation Model File | 3.7 |
| .SUMO | Sumo Paint Image | 4.3 |
| .SUMOCFG | SUMO Configuration File | 4.1 |
| .SUN | Sun Raster Graphic | 3.1 |
| .SUNIFF | Sun TAAC IFF Image | 2.0 |
| .SUNVOX | SunVox Project File | 2.8 |
| .SUO | Visual Studio Solution User Options File | 3.9 |
| .SUP | Subtitle Bitmap File | 3.3 |
| .SUP | Super Project Definition File | 3.4 |
| .SUPP | Encrypted iOS Application Archive | 3.3 |
| .SUS | Transactionware GM Suspended Transaction | 4.3 |
| .SV | SystemVerilog Source Code File | 3.8 |
| .SV$ | AutoCAD Automated Backup File | 3.8 |
| .SV2I | Symantec System Index File | 4.0 |
| .SV4 | RollerCoaster Tycoon Saved Game | 2.9 |
| .SV5 | BigJig 5 Saved Puzzle | 3.3 |
| .SV5 | Chris Sawyer's Locomotion Saved Game | 2.0 |
| .SV6 | RollerCoaster Tycoon 2 Saved Game | 3.8 |
| .SV8 | BigJig 8 Saved Puzzle | 3.0 |
| .SVA | Manga Browser Comic File | 2.8 |
| .SVC | WCF Web Service File | 3.1 |
| .SVD | Roland Patch File | 3.6 |
| .SVD | SolidView Design File | 3.6 |
| .SVD | Scanning Vibrometer Data File | 3.7 |
| .SVE | Simutrans Saved Game | 4.2 |
| .SVE | Carmageddon: TDR 2000 Saved Game | 1.7 |
| .SVE | Fallout 2 Video Subtitle File | 2.0 |
| .SVELTE | Svelte Source Code File | 4.5 |
| .SVF | Simple Vector Format Graphic | 2.8 |
| .SVF | Serial Vector Format File | 3.5 |
| .SVF | Intergraph Smart Review Project | 2.0 |
| .SVG | Scalable Vector Graphic | 4.3 |
| .SVG | Saved Game | 2.6 |
| .SVGZ | Compressed SVG File | 4.2 |
| .SVH | SystemVerilog Source Code Header File | 1.7 |
| .SVI | Samsung Video File | 2.2 |
| .SVM | StarView Metafile | 3.4 |
| .SVN-BASE | Subversion Base File | 3.6 |
| .SVN-WORK | Subversion Cache File | 4.0 |
| .SVP | Subsurface Viewer Project | 2.0 |
| .SVP | Synthesizer V Project | 4.5 |
| .SVQ | Roland Sequencer File | 2.2 |
| .SVR | Compressed Virtual World | 3.8 |
| .SVS | Game Boy Advance Saved State File | 3.7 |
| .SVS | Need for Speed: World Vinyl Setup | 3.0 |
| .SVS | Aperio ScanScope Slide Image | 2.5 |
| .SVSDOWNLOAD | Synology Surveillance Station Download File | 1.0 |
| .SVSLIDE | Sakura VisionTek Slide Image | 3.0 |
| .SVT | Torchlight Saved Game File | 2.7 |
| .SVW | SpecView File | 2.0 |
| .SVX | 8SVX Sound File | 2.0 |
| .SVX | Survex Cavern Data File | 3.3 |
| .SVZ | FANTOM Audio Sample | 2.0 |
| .SW | Signed Word Audio File | 2.0 |
| .SW2 | Softwrap License File | 3.4 |
| .SW3 | WinWedge Configuration File | 2.0 |
| .SW3 | Scriptware Screenplay | 2.0 |
| .SWA | Shockwave Audio | 3.6 |
| .SWAV | Nintendo DS Audio | 2.3 |
| .SWB | Sketchware Pro Backup | 4.3 |
| .SWC | Flex Components Archive | 3.9 |
| .SWC | Super Nintendo Wild Card ROM File | 3.4 |
| .SWD | Flash Debug File | 3.8 |
| .SWE | Super Mario Maker World Engine Level | 4.3 |
| .SWF | Shockwave Flash Movie | 4.2 |
| .SWI | SWiSH Project File | 3.7 |
| .SWIDTAG | SWID Tag File | 3.6 |
| .SWIFT | Swift Source Code File | 3.9 |
| .SWIFTPM | Swift Package Manager Directory | 3.0 |
| .SWIFTPM | Swift Playgrounds App Project | 3.5 |
| .SWITCH | Switch Package | 2.4 |
| .SWJ | SolidWorks Journal File | 3.3 |
| .SWK | StudyWorks Save File | 2.0 |
| .SWM | Split Windows Imaging Format File | 3.6 |
| .SWP | Swap File | 3.5 |
| .SWP | Vi Swap File | 3.3 |
| .SWT | Flash Generator Template | 3.3 |
| .SWV | Microsoft Sidewinder Game Voice Settings File | 2.0 |
| .SWW | Anno Saved Game | 2.3 |
| .SWZ | Adobe Flash Player Cache File | 2.7 |
| .SX | SimplexNumerica Data File | 3.2 |
| .SXC | StarOffice Calc Spreadsheet | 3.6 |
| .SXCU | ShareX Custom Uploader | 3.6 |
| .SXD | StarOffice Drawing | 3.0 |
| .SXD | ArcScene Document | 3.1 |
| .SXF | Secure eXchange Format File | 2.0 |
| .SXG | Apache OpenOffice Master Document | 2.8 |
| .SXI | StarOffice Impress Presentation | 3.6 |
| .SXIE | ShareX Image Effect File | 3.0 |
| .SXLS | Sealed Microsoft Excel Spreadsheet | 3.3 |
| .SXM | StarMath Formula | 3.0 |
| .SXML | Sealed XML File | 1.5 |
| .SXT | Propellerhead Reason NN-XT Patch File | 3.5 |
| .SXW | StarOffice Writer Document | 3.3 |
| .SY | Simplexety Data File | 3.3 |
| .SY3 | Harvard Graphics Symbol File | 1.0 |
| .SYB | Syberia Game Data File | 1.0 |
| .SYH | Synchomatic Instrument | 3.3 |
| .SYLK | Microsoft Symbolic Link File | 3.3 |
| .SYM | Symbols File | 3.5 |
| .SYM | TatukGIS Symbols File | 1.8 |
| .SYM | gEDA Symbol File | 3.0 |
| .SYN | SimSynth Document | 2.9 |
| .SYN | Synergy On Air Audio File | 2.0 |
| .SYN | RoboHelp Synonym List File | 2.0 |
| .SYN | TextPad Syntax File | 2.0 |
| .SYNTHESIA | Synthesia Metadata | 3.0 |
| .SYNW-PROJ | SynWrite Project | 3.4 |
| .SYS | Windows System File | 4.1 |
| .SYS | Motorola Cell Phone Driver | 3.8 |
| .SYS-RESERVED-RW-BITMAP.GROW | Pioneer DVD Recorder Dummy File | 1.8 |
| .SYSTEM | Vega Strike Virtual System File | 2.5 |
| .SYW | SY99/SY85 Audio | 3.3 |
| .SYX | MIDI System Exclusive Message | 3.7 |
| .SY_ | Compressed SYS File | 4.3 |
| .SZ | Winamp Classic Skin Download | 3.5 |
| .SZA | HiCAD Drawing File | 3.0 |
| .SZS | Wii Game Data File | 3.9 |
| .SZS | GameCube Data File | 1.9 |
| .SZS | Nintendo Switch Game Data Archive | 3.0 |
All results listed.