| con | ROSE Online NPC Dialogs Data |
| con | Train Simulator Model Identification |
| content | Rust Game Data |
| controls | OpenBVE Keyboard Shortcuts |
| course | Super Mario ReMaker Course Data |
| cp1 | ChessBase Tactics Key Data |
| cp2 | ChessBase Strategy Key Data |
| cp3 | ChessBase Endgame Key Data |
| cp3 | Grand Prix 3 Cockpit Shape |
| cpck | Professor Layton Game Package |
| cpln | KalOnline Extended Module Data |
| cpn | Age of Mythology Campaign Data |
| cpn | ChessBase General Themes Key Data |
| cpo | ChessBase Positions Openings |
| craft | KSP Spacecraft Data |
| cre | Infinity Engine Creature |
| crf | Thief Game Data |
| crh | Links 386 Pro Game Data |
| crpl | Creeper World 3 Script |
| crs | Stepmania Course Data |
| cry | CryENGINE Map Data |
| crysisjmsf | Crysis Saved Game |
| crysispsf | Crysis Warhead Saved Game |
| cs2 | Cosmic Break CS2 Skin |
| csc | 18 Wheels of Steel CSC Data |
| csl | Anno 2070 Script |
| csmp | Metroid Prime 3 Audio |
| ct4 | 1000 Miglia Game Data |
| ctl | Stepmania Package Description |
| cty | SimCity City Data |
| cvm | Odin Sphere Game Data |
| cw1 | Creeper World Game Map Data |
| cw2 | Creeper World 2 Map Data |
| cwd | Cardwar Cards deck |
| cwg | Castle of the Winds Data |
