| cbc | MODFLOW Cell-by-cell Flow Data |
| cbcp | CodeBaby Production Studio Character Package |
| cbd | Corel WordPerfect Dictionary Data |
| cbddlp | ChiTuBox Sliced 3D Object |
| cbg | CyberGauge Data File |
| cbin | CACTVS Binary File |
| cbk | DYMO CardScan Backup Data |
| cbm | EaseUS Todo Backup Data |
| cbml | Vernier Logger Pro Data |
| cbmv | Comic Book Millennium Collection Data |
| cbo | Microsoft Interactive Training Bookmark |
| cbor | Concise Binary Object Representation Data |
| cbs | DB/TextWorks SQL Textbase Structure Data |
| cbw | Cardbox Workspace Data |
| cbx | IBM Rational XDE Collaboration File |
| cbx | Westok Cellbeam Data |
| cbxx | Westok Cellbeam Data |
| cc | STK City Database Counties |
| cc1 | Briggs Softworks Calendar Commander Data |
| cc1 | CARE-S InfoWorks Chemical Oxygen Detail Data |
| cc2 | Calendar Commander v2 Calendar Data |
| cc3 | CUEcards Data |
| cc4 | Crossword Compiler v4 Crossword Data |
| cca | cc:Mail Archive |
| ccad | Claris CAD Data |
| ccc | BibExcel CCC Data |
| ccc | Corel WordPerfect Office Calendar Data |
| ccc | FLEXnet Manager Data |
| ccc | Microsoft Comic Chat Conversation Data |
| ccd | SmartWare Compiled Cartridge Descriptor |
