| c3b | Cocos2d-x 3D Model Data |
| c86 | Computer Innovation C86 Source Code |
| ca | Core Animation Markup Language Data |
| ca1 | Delphi Install Disk Data |
| ca2 | Delphi Install Disk Data |
| ca3 | Delphi Install Disk Data |
| ca4 | Delphi Install Disk Data |
| ca5 | Delphi Install Disk Data |
| caf | Amazon Lumberyard Character Animation Data |
| cal | Cakewalk Application Language Script |
| caml | Core Animation Markup Language Data |
| capfile | Ruby Capistrano Instruction Data |
| car | BREW MP Component Application Resource |
| catscript | CATIA Script |
| catvbs | CATIA VB Script |
| cax | Amazon Lumberyard CAD Exchange Data |
| cb | BRIEF Macro File |
| cb | CoolBasic Source Code |
| cbk | Delphi Temporary Backup |
| cbl | COBOL Source Code |
| cbo | COMBAS Binbary Object |
| cbs | Cardbox Macro Script |
| cbxml | CodeBox Library |
| cc | C++ Source Code |
| cc | Visual dBASE Custom Class Data |
| ccb | CopperCube Scene File |
| ccb | Visual Basic Animated Button Configuration |
| ccbi | CocosBuilder Export File |
| ccbjs | CopperCube JavaScript File |
| ccg | GNOME C++ Source Code |
