| bpr | BackupXpress Project |
| bro | Creatacard Brochure Project |
| bsdesign | Bootstrap Studio Design Project |
| bsproj | BannedStory Project |
| bt | BTwin Project |
| btproj | Microsoft BizTalk Project |
| bvp | VodaHost BlueVoda Project |
| bwl | BrainStorm Project |
| bwpr | PlainHTML Project |
| bxp | BasicX Project |
| c2c | CopyToDVD Project |
| c3p | Core 3 Xpanel Project |
| c3prj | Core 3 Xpanel Project |
| cal | Creatacard Calendar Project |
| cam | Camtasia Studio Project |
| camerror | Camtasia Studio Error Log |
| camproj | Camtasia Studio Project |
| camthtr | Camtasia Studio Theater Project |
| caproj | Scirra Construct Project |
| capx | Construct Compressed Project |
| car | Creatacard Quarter-Fold Card Project |
| caustic | Caustic Audio Project |
| cbp | Code::Blocks Project |
| cbproj | C++ Builder Project |
| ccbproj | CocosBuilder Project |
| ccproject | Character Creator Project |
| ccs | CodeCharge Studio Project |
| cd | Steinberg WaveLab Basic Audio CD Project |
| cd4 | Dymo DiscPainter Document |
| cdp | Steinberg WaveLab Basic CD Project |
