| 1 | 2DA | BioWare | BioWare Aurora Engine 2-dimensional Array |
| 2 | 2DS | N/A | Unreal Tournament 2D Shape |
| 3 | 3DI | NovaLogic, Inc. | Delta Force Object Collection |
| 4 | 3DO | Cavedog Entertainment | Total Annihilation Object |
| 5 | 4 | N/A | Unix Section 4 Manual Page |
|
| 6 | 6 | IBM | IBM Embedded ViaVoice Voice Type Languages Scripts Data |
| 7 | 9 | N/A | Generic |
| 8 | ACM | BioWare | Interplay Audio Format |
| 9 | ARCH00 | Sierra | F.E.A.R. Game Archive |
| 10 | ARCH05 | N/A | Middle Earth: Shadow of Mordor game data |
| 11 | ARE | BioWare | BioWare Aurora Engine Area |
| 12 | ARH | Alawar Entertainment | El Airplane Game Archive Format |
| 13 | ASSET | Unity Technologies | Unity Asset Format |
| 14 | ASSETS | Unity Technologies | Unity Asset File |
| 15 | BA2 | Bethesda Softworks | Bethesda Softworks Archive |
| 16 | BAF | Electronic Arts, Inc. | Battlefield 2 Animation |
| 17 | BAG | Blueprint Software Works, Inc. | PMMail Mail Index |
| 18 | BBA | Ubisoft Entertainment S.A. | BlueByte Archive |
| 19 | BF | Cryo Interactive Entertainment | CryoBF Game Data Format |
| 20 | BIG | Electronic Arts | Electronic Arts Game Data Format |
| 21 | BIK | RAD Game Tools | BINK Video Format |
| 22 | BIMAGE | N/A | id Tech texture data |
| 23 | BLB | Dreamworks Interactive | Blob Data Format |
| 24 | BLP | Blizzard Entertainment | Blizzard Texture Format |
| 25 | BLV | Ubisoft Entertainment S.A. | Might And Magic 6/7 Dungeon Level Geometry |
| 26 | BM2 | DynaVox Mayer-Johnson | Subspace Bitmap Format |
| 27 | BMD | WEBZEN | MU Online Game Data Format |
| 28 | BMD6MODEL | N/A | id Tech 6 model |
| 29 | BMODEL | N/A | id Tech 6 model |
| 30 | BND | JoWooD Entertainment AG | Neighbours From Hell Game Archive |
| 31 | BNDL | N/A | Game Data Bundle Format |
| 32 | BNDLXML5 | N/A | Middle Earth: Shadow of Mordor game data |
| 33 | BNS | Valve | Portal Script Format |
| 34 | BNT | MindArk PE AB. | Entropia Universe Game Archive |
| 35 | BOD | Egosoft | X3 Reunion Ship |
| 36 | BRG | Bentley Systems | ProjectWise User Settings Format |
| 37 | BSA | Bethesda Softworks | Bethesda Softworks Archive |
| 38 | BUN | Roland | Cakewalk Bundle Format |
| 39 | BUNDLEDMESH | Electronic Arts, Inc. | Battlefield Bundled Mesh |
| 40 | CBF | Tailwag Software | Calendar Builder Format |
| 41 | CDATA | Electronic Arts, Inc. | Command & Conquer 3 Audio |
| 42 | CFGE | iWin | Jewel Quest Configuration Format |
| 43 | CHA | N/A | IRC Chat Configuration Format |
| 44 | CHU | N/A | Infinity Engine user interface description |
| 45 | CLEO | CLEO | CLEO Grand Theft Auto Mod Format |
| 46 | CM | Rockstar Games | CLEO Custom Mission |
| 47 | CRE | N/A | Infinity Engine Creature |
| 48 | CRF | Alexandre Devilliers | Enhanced Dark Engine Game Archive Format |
| 49 | CRY | Crytek | CryENGINE Map Format |
| 50 | CTP | Cake Software Foundation | CakePHP Template |
| 51 | D3C | Interplay Entertainment Corporation | Descent |
| 52 | DARKEST | N/A | Darkest Dungeon game script |
| 53 | DAS | Bissantz | DeltaMaster Analysis Session |
| 54 | DB1 | Tekla | Tekla Structures Model Format |
| 55 | DB5 | GSC Game World | S.T.A.L.K.E.R. Game |
| 56 | DB6 | GSC Game World | S.T.A.L.K.E.R. Game |
| 57 | DB7 | GSC Game World | S.T.A.L.K.E.R. Game |
| 58 | DB8 | GSC Game World | S.T.A.L.K.E.R. Game |
| 59 | DB9 | GSC Game World | S.T.A.L.K.E.R. Game |
| 60 | DBPF | N/A | Maxis Database Packed Format |
| 61 | DDS | Microsoft | DirectDraw Surface |
| 62 | DEM | Valve | Video Game Demo Format |
| 63 | DFF | N/A | RenderWare Model Format |
| 64 | DIE | Blizzard Entertainment, Inc. | Diablo Item |
| 65 | DNI | Cyan Worlds, Inc. | RealMyst 3D Game Archive |
| 66 | DRS | Corel Corporation | Corel WordPerfect Driver Resource |
| 67 | DS1 | Blizzard Entertainment, Inc. | Diablo 2 Map |
| 68 | DZIP | CD Projekt | The Witcher 2 Game Archive |
| 69 | ED | Monolith Productions, Inc. | LithTech Game Level |
| 70 | EMBB | N/A | Middle Earth: Shadow of Mordor game data |
| 71 | EMT | Epic Games, Inc. | Unreal Engine Emitter |
| 72 | ESF | The Creative Assembly | Total War Campaign Settings |
| 73 | ESM | Bethesda Softworks | Elder Scrolls Master Format |
| 74 | EVD | Rockstar Games, Inc. | Grand Theft Auto IV Vehicle Extended Data |
| 75 | EXH | Electronic Arts, Inc. | NHL Game Exhibition Roster |
| 76 | FBRB | Electronic Arts | Battlefield Bad Company 2 Data Format |
| 77 | FBZ | Blueberry | FlashBack Screen Recorder Movie |
| 78 | FF | Activision | Call Of Duty 4 Fast Format |
| 79 | FFL | Microsoft | Find Fast Document List |
| 80 | FLMOD | Microsoft Corporation | Freelancer Game Archive |
| 81 | FOMOD | N/A | Fallout Mod Archive |
| 82 | FORGE | Ubisoft | Ubisoft Game Data File |
| 83 | FPK | 2K Games | Civilization 4 Data Format |
| 84 | FSH | OpenGL | Fragment Shader Format |
| 85 | FUZ | Bethesda Softworks | Bethesda Softworks Voice File |
| 86 | GAF | Cavedog Entertainment | Total Annihilation Animated Bitmap Format |
| 87 | GAM | N/A | Saved Game Format |
| 88 | GAX | Microsoft Studios | Age Of Empires II Save Game |
| 89 | GBLORB | N/A | Interactive Fiction |
| 90 | GCM | Nintendo | GameCube ROM |
| 91 | GJD | Trilobyte | The 7th Guest Media Format |
| 92 | GM | GameMonkey Script | GameMonkey Script |
| 93 | GOB | LucasArts Entertainment Company, LLC | LucasArts Game Resource |
| 94 | GRO | Hewlett-Packard | Graphic Object Bitmap |
| 95 | HAZ | Microsoft Studios | Microsoft Flight Texture |
| 96 | HKX | Bethesda Softworks LLC | Skyrim Animation |
| 97 | HMI | Human Machine Interfaces | HMI Audio Format |
| 98 | HONMOD | S2 Games, LLC. | Heroes Of Newerth Mod Format |
| 99 | HPK | PopTop Software | Tropico Game Archive |
| 100 | HSV | Blizzard Entertainment, Inc. | Diablo: Hellfire Singleplayer Character Data |
| 101 | HVA | Electronic Arts, Inc. | Command And Conquer Tiberian Sun Voxel Animation Control |
| 102 | IAI | N/A | Nova Logic Item Attributes Info |
| 103 | IBI | Raven Software | Raven Software ICARUS Compiled Script |
| 104 | IDS | BioWare | Infinity Game Engine |
| 105 | IFP | Rockstar Games | GTA Animation Format |
| 106 | IMC | LucasArts Entertainment Company, LLC | LucasArts Game Sound |
| 107 | IPG | Apple | IPod Game Format |
| 108 | ISB | Sony Online Entertainment | Vanguard Music |
| 109 | ITM | isee systems | IThink Model Format |
| 110 | ITP | BioWare | BioWare Aurora Game Engine Palette |
| 111 | IWD | Activision | Call Of Duty Game Data Format |
| 112 | IWI | Activision | Infinity Ward Texture Format |
| 113 | J2D | Epic Games, Inc. | Jazz Jackrabbit Data |
| 114 | JAM | Sierra Entertainment | Leisure Suit Larry Magna Cum Laude Archive Format |
| 115 | JKS | LucasArts Entertainment Company, LLC | Jedi Knight Save |
| 116 | KDA | NovaLogic, Inc. | Nova Logic Game |
| 117 | KF | N/A | The Elder Scrolls Game |
| 118 | KSML | Gearbox Software | Halo Custom Edition |
| 119 | LAB | Corel | WordPerfect Label Definition Format |
| 120 | LBF | 2K Games | Bioshock 2 Configuration |
| 121 | LMG | CRYTEK | CryENGINE Locomotion Group Animation |
| 122 | LNC | Sports Interactive | Football Manager Player |
| 123 | LNG | Nullsoft | Language Application Support Format |
| 124 | LRF | Sony | Sony Portable Reader Format |
| 125 | LRN | Apple, Inc. | Apple Chess User Data |
| 126 | LTA | Monolith Productions, Inc. | Monolith Lithtech Game Engine |
| 127 | LUG | N/A | Game |
| 128 | LUV | Sega Corporation | Medieval 2 Total War |
| 129 | LVL | N/A | Game Level Format |
| 130 | LZC | Electronic Arts, Inc. | Need For Speed Undercover Game Data |
| 131 | LZP | Legacy Interactive | Law And Order 3: Justice Is Served Game |
| 132 | M2 | Blizzard Entertainment | World Or Warcraft Model Object |
| 133 | M3S | Ubisoft Entertainment S.A. | Myst III Exile Saved Game |
| 134 | M3T | Ubisoft Entertainment S.A. | Myst 3 Exile Text |
| 135 | M8 | Raven Software | Heretic II MipMap Image |
| 136 | MAO | BioWare | Dragon Age Origins MAO XML |
| 137 | MATPROJ | BioWare | Dragon Age Origins Material |
| 138 | MD2 | id Software | Quake 2 Player Model |
| 139 | MD3 | id Software | Quake 3 3D Model |
| 140 | MD4 | id Software LLC | Quake 3 MD4 Skeletal Model Format |
| 141 | MD5ANIM | id Software | Id Tech 4 Model Animation Format |
| 142 | MD5CAMERA | id Software | Id Tech 4 Model Camera Format |
| 143 | MD5MESH | id Software | Id Tech 4 3D Mesh Format |
| 144 | MD6MESH | N/A | id Tech 6 mesh |
| 145 | MGZ | Konami Corporation | Metal Gear Solid Game Archive |
| 146 | MIS | GarageGames | Saved Game Mission Format |
| 147 | MN3 | Interplay Entertainment Corporation | Descent 3 Mission |
| 148 | MOB | MediaCorp | MOBTV Video Format |
| 149 | MODINFO | N/A | Civilization 5 mod information |
| 150 | MOPP | Havok Inc. | Havok Engine |
| 151 | MPQ | Blizzard Entertainment, Inc. | Blizzard Entertainment Archive |
| 152 | MPQE | Blizzard Entertainment, Inc. | Blizzard Encrypted Game Data |
| 153 | MTA | Samsung | Samsung AllShare Metadata Format |
| 154 | MTF | Motorola | Motorola Theme Format |
| 155 | MVE | BioWare | Infinity Engine Movie Format |
| 156 | N2E | N/A | The Incredible Adventures of Van Helsing effect |
| 157 | N2PK | N/A | The Incredible Adventures of Van Helsing game data |
| 158 | NCS | BioWare | Bioware Aurora / Obsidian Electron Compiled Script |
| 159 | NIF | Gamebase | Gamebryo Model Format |
| 160 | NOB | N/A | Silver Game Data |
| 161 | NPJ | PremiumSoft CyberTech Ltd. | Navicat For MySQL Batch Job |
| 162 | NSBCA | N/A | Nintendo DS Model Animation Format |
| 163 | NSBMD | N/A | Nintendo DS Model Format |
| 164 | NSBTX | N/A | Nintendo DS Model Texture Format |
| 165 | NSCR | Nintendo | Nintendo DS Title Screen Format |
| 166 | OPPC | Relic Entertainment Inc. | Space Marine Game Resource Package |
| 167 | P3D | Bohemia Interactive | Operation Flashpoint Game Model Format |
| 168 | P8 | Lexaloffle | PICO-8 Source Code File |
| 169 | PAK | N/A | PAK (Packed) Format |
| 170 | PATCH | Matt Mackall | Patch |
| 171 | PBO | Bohemia Interactive | Packed Bohemia Object |
| 172 | PCC | Electronic Arts | Mass Effect Package |
| 173 | PCK | Eidos Interactive Ltd. | Game Package Format |
| 174 | PCSAV | Electronic Arts | Mass Effect 2 Saved Game |
| 175 | PFF | Access | NovaLogic Game Archive Format |
| 176 | PIG | Interplay | Descent Texture Format |
| 177 | PK1 | Atari, Inc. | XS Game |
| 178 | PK3 | Id Software | Quake 3 Engine Game Data Format |
| 179 | PK4 | id Software | Doom 3 Engine Game Data Format |
| 180 | PK5 | Activision | Enemy Territory Quake Wars 23rd Century Warfare |
| 181 | PKZ | Piboso | Kart Racing Pro Track |
| 182 | PLR | Image Space | RFactor Player Format |
| 183 | POO | NCsoft Corporation | On-Line Game Protected |
| 184 | POP | dataBased Intelligence, Inc. | DBase Popup Menu Format |
| 185 | PROFILE_SAVE_DATA | N/A | Battlefield 3 and Battlefield 4 profile |
| 186 | PSARC | N/A | Sony Playstation 3 Game Archive |
| 187 | PSK | Epic Games | Unreal Engine Skeletal Mesh Format |
| 188 | PSSG | Codemasters | EGO Engine Textures Format |
| 189 | PSV | Sony | PlayStation 2 Save Format |
| 190 | PUD | Blizzard Entertainment, Inc. | WarCraft Map |
| 191 | QC | Valve | Half-Life Model Compiler Script |
| 192 | QVM | id Software | Quake 3 Virtual Machine Format |
| 193 | RBZ | Intersystem Concepts, Inc. | Rail Baron Player Saved Game Format |
| 194 | RCF | SonicWALL | Prototype Game Format |
| 195 | RDA | The R Project for Statistical Computing | R Data Format |
| 196 | RESS | Unity Technologies | Unity 3D Model Archive |
| 197 | REZ | Monolith | Lithtech Game Engine Resource Format |
| 198 | RGM | Relic Entertainment Inc. | Essence Game Engine Model |
| 199 | RMDP | Microsoft Studios | Alan Wake Game Data |
| 200 | RME | SQUARE ENIX CO. | Final Fantasy Audio |
| 201 | RPKG | IO Interactive | Hitman Game Patch Archive |
| 202 | RVI | Eidos Interactive Ltd. | Revenant Game Archive |
| 203 | RX3 | Electronic Arts, Inc. | FIFA 11 Texture |
| 204 | S16 | N/A | Digital Voice Recorder Audio File |
| 205 | SABL | Activision | Call Ot Duty: Black Ops II Audio Library |
| 206 | SABS | Activision | Call Ot Duty: Black Ops II Sounds |
| 207 | SAD | Lionhead Studios | Black & White Audio Format |
| 208 | SAK | Running With Scissors | Postal Game Archive |
| 209 | SAV | Nintendo | Saved Game |
| 210 | SAVE | Nano | Nano Temporary Save Format |
| 211 | SC2REPLAY | Blizzard Entertainment | Blizzard StarCraft 2 Replay Format |
| 212 | SC4 | Electronic Arts | SimCity 4 Saved Format |
| 213 | SC4MODEL | Electronic Arts | SimCity 4 Model Format |
| 214 | SCB | Electronic Arts, Inc. | Command & Conquer World Builder Script Format |
| 215 | SGA | Relic Entertainment | Relic Entertainment Game Archive |
| 216 | SHADER | id Software | Quake 3 Engine Shader Format |
| 217 | SHADER_BUNDLE | N/A | Avalanche Studios game graphics |
| 218 | SIMS3PACK | Electronic Arts | The Sims 3 Package Format |
| 219 | SJS | Electronic Arts, Inc. | Simcity 3000 Buildings Add-on |
| 220 | SKINNEDMESH | Electronic Arts, Inc. | Battlefield Skinned Mesh |
| 221 | SKSE | Bethesda Softworks | The Elder Scrolls V: Skyrim Script Extender Data |
| 222 | SKUDEF | Electronic Arts, Inc. | Command & Conquer Archive Description Package |
| 223 | SMZIP | StepMania | StepMania Package |
| 224 | SNDSHD | N/A | id Tech 4 sound shader |
| 225 | SNI | Interplay Entertainment Corporation | MDK Game Archive |
| 226 | SQF | Bohemia Interactive | ArmA Script Format |
| 227 | SQH | DreamCatcher Interactive | Harbinger Game |
| 228 | STUFF | CCP | Eve Online Game Archive |
| 229 | SWW | Ubisoft Entertainment | Anno Saved Game |
| 230 | TBG | BioWare | Infinity Engine Game |
| 231 | TEXTUREPACK | exDream GmbH | Arena Wars Texture Pack |
| 232 | TFC | Epic Games | Unreal Engine 3 Texture Format Cache |
| 233 | TFIL | Blizzard Entertainment | Blizzard Software Update Format |
| 234 | TGX | Firefly Studios Ltd. | Stronghold |
| 235 | TIGER | Crystal Dynamics | Tomb Raider Game Data Archive |
| 236 | TIL | NovaLogic, Inc. | Nova Logic Game Tile |
| 237 | TLK | BioWare | BioWare Aurora Engine Talk Table Format |
| 238 | TOH | BioWare | Infinity Engine Game |
| 239 | TPJ | N/A | Nova Logic Game Terrain Project |
| 240 | TRE | Electronic Arts, Inc. | EA SPORTS Game |
| 241 | TS1 | VirtualBus | VirtualBus Texture Description Format |
| 242 | TTARCH | Telltale Games | Telltale Games Archive |
| 243 | TTARCH2 | Telltale, Inc. | The Walking Dead Season Two Game Data |
| 244 | TXD | Renderware | Game Texture Dictionary |
| 245 | TXTR | N/A | The Sims Texture |
| 246 | UASSET | Epic Games | Unreal Asset |
| 247 | UAX | Epic Games | Unreal Audio Package |
| 248 | UC | N/A | UnrealScript Class |
| 249 | UCL | Epic Games, Inc. | Unreal Tournament Cache Format |
| 250 | UCS | Relic Entertainment Inc. | Homeworld Localized Unicode Strings |
| 251 | UDK | Epic Games | Unreal Engine Map Format |
| 252 | UFX | Ultimate 3D | Ultimate 3D Game Engine Material |
| 253 | UHTM | Epic Games, Inc. | Unreal Tournament |
| 254 | UKX | Epic Games | Unreal Animation Package |
| 255 | UMAP | Epic Games | Unreal Engine Map File |
| 256 | UMOD | Epic Games | Unreal Tournament Module Format |
| 257 | UNR | N/A | Unreal Level Map |
| 258 | UPK | Epic Games | Unreal Engine 3 Package |
| 259 | USX | Epic Games | Unreal Static Meshes |
| 260 | UT2 | Epic Games | Unreal Tournament Map |
| 261 | UT2MOD | Epic Games | Unreal Tournament 2003/2004 Module Format |
| 262 | UT3 | Epic Games | Unreal Tournament 3 Map Format |
| 263 | UT4MOD | Epic Games | Unreal Tournament 2004 Module |
| 264 | UTX | Epic Games | Unreal Texture Package |
| 265 | UZ2 | Epic Games, Inc. | Unreal Tournament Compressed |
| 266 | VCM | LithJoe | Vice City Mod Manager Format |
| 267 | VFS | N/A | UFO Game Archive Format |
| 268 | VFS0 | 4A Games | Metro 2033 Sound File |
| 269 | VL2 | Sierra Entertainment, Inc. | Tribes 2 Game |
| 270 | VMT | Valve | Valve Material Format |
| 271 | VOL | N/A | Volume Format |
| 272 | VPK | Valve | Valve Pak |
| 273 | VPP | Visual Paradigm | Visual Paradigm Project Format |
| 274 | VQA | Westwood Studios (EA) | Command And Conquer Game Video Formats |
| 275 | VTF | Valve | Valve Texture Format |
| 276 | VTX | Microsoft | Visio Template XML Format |
| 277 | VVC | BioWare | Infinity Game Engine Visual Spell Casting Effects |
| 278 | W3G | Blizzard Entertainment | Warcraft 3 Replay Format |
| 279 | W3I | Blizzard Entertainment, Inc. | Warcraft III Map Related |
| 280 | W3M | Blizzard Entertainment | Warcraft 3 Map Format |
| 281 | W3S | N/A | Warcraft 3 sounds definition |
| 282 | W3U | Blizzard Entertainment, Inc. | Warcraft 3 Custom Units |
| 283 | W3V | Blizzard Entertainment, Inc. | Warcraft 3 Campaign Progress Record |
| 284 | W3Z | Blizzard Entertainment | Warcraft 3 Saved Game Format |
| 285 | WAD | id Software | Doom WAD Format |
| 286 | WAI | Blizzard Entertainment, Inc. | Warcraft 3 AI Data |
| 287 | WGC | N/A | WGCheck log |
| 288 | WGPKG | N/A | WarGaming update package |
| 289 | WHD | Eidos Interactive Ltd. | Hitman Game Archive |
| 290 | WHM | Relic Entertainment Inc. | Warhammer 40,000: Dawn Of War Model |
| 291 | WNV | N/A | Grand Theft Auto IV NavMesh data |
| 292 | WOTREPLAY | Wargaming | World Of Tanks Replay Format |
| 293 | X13 | Darxabre | Hooligans Game Archive |
| 294 | XAN | Team17 Software | Worms Map Format |
| 295 | XCR | Enlight Software. Ltd. | Warlords Battlecry Game |
| 296 | XWC | Starbreeze | Starbreeze Sound |
| 297 | XWM | Bethesda Softworks LLC | The Elder Scrolls V: Skyrim Music |
| 298 | YTD | Rockstar Games | Grand Theft Auto 5 Texture File |
| 299 | ZA | Destineer Publishing Corp. | Game |
| 300 | ZFS | NavisWorks | Z+F Scan |
| 301 | ZIPFS | ValuSoft | 18 Wheels Of Steel: Across America Game |
| 302 | ZST | ZSNES | ZSNES Save Format |
| 303 | ZTD | Microsoft | Zoo Tycoon Data Archive |
