| Extension | File Description |
| .CAW | Uncommon Files |
| .CAX | Uncommon Files |
| .CAY | Uncommon Files |
| .CAZ | Uncommon Files |
| .CA_ | Uncommon Files |
| .CB | Uncommon Files |
| .CB0 | Uncommon Files |
| .CB1 | Uncommon Files |
| .CB2 | Uncommon Files |
| .CB3 | Uncommon Files |
| .CB4 | Uncommon Files |
| .CB5 | Uncommon Files |
| .CB6 | Uncommon Files |
| .CB7 | Compressed Files |
| .CB8 | Uncommon Files |
| .CB9 | Uncommon Files |
| .CBA | Developer Files |
| .CBB | Uncommon Files |
| .CBC | Uncommon Files |
| .CBCP | Uncommon Files |
| .CBCX | Uncommon Files |
| .CBD | Uncommon Files |
| .CBDS | Misc Files |
| .CBE | Uncommon Files |
| .CBF | Game Files |
| .CBG | Uncommon Files |
| .CBH | Uncommon Files |
| .CBI | Uncommon Files |
| .CBIN | Uncommon Files |
| .CBJ | Uncommon Files |
| .CBK | Backup Files |
| .CBL | Developer Files |
| .CBLE | Uncommon Files |
| .CBM | Uncommon Files |
| .CBMV | Uncommon Files |
| .CBN | Uncommon Files |
| .CBO | Uncommon Files |
| .CBP | Developer Files |
| .CBQ | Uncommon Files |
| .CBR | Compressed Files |
| .CBS | Backup Files |
| .CBT | Compressed Files |
| .CBTX | Uncommon Files |
| .CBTZ | Uncommon Files |
| .CBU | Backup Files |
| .CBV | Uncommon Files |
| .CBW | Uncommon Files |
| .CBX | Uncommon Files |
| .CBY | Uncommon Files |
| .CBZ | Compressed Files |
| .CC | Developer Files |
| .CC0 | Uncommon Files |
| .CC1 | Uncommon Files |
| .CC2 | Uncommon Files |
| .CC3 | Uncommon Files |
| .CC4 | Uncommon Files |
| .CC5 | Uncommon Files |
| .CC6 | Uncommon Files |
| .CC7 | Uncommon Files |
| .CC8 | Uncommon Files |
| .CC9 | Uncommon Files |
| .CCA | Data Files |
| .CCAD | Uncommon Files |
| .CCB | Uncommon Files |
| .CCC | Uncommon Files |
| .CCD | Disk Image Files |
| .CCDOC | Uncommon Files |
| .CCE | Uncommon Files |
| .CCF | Encoded Files |
| .CCG | Uncommon Files |
| .CCH | Data Files |
| .CCI | Uncommon Files |
| .CCITT | Uncommon Files |
| .CCJ | Uncommon Files |
| .CCK | Uncommon Files |
| Extension | File Description |
| .CCL | Uncommon Files |
| .CCM | Uncommon Files |
| .CCN | Developer Files |
| .CCO | Uncommon Files |
| .CCP | Data Files |
| .CCPR | Uncommon Files |
| .CCQ | Uncommon Files |
| .CCR | Data Files |
| .CCRF | Uncommon Files |
| .CCS | Uncommon Files |
| .CCT | Data Files |
| .CCU | Uncommon Files |
| .CCV | Uncommon Files |
| .CCW | Uncommon Files |
| .CCX | Vector Image Files |
| .CCXML | Uncommon Files |
| .CCY | Uncommon Files |
| .CCZ | Uncommon Files |
| .CC_ | Uncommon Files |
| .CD | Disk Image Files |
| .CD0 | Uncommon Files |
| .CD1 | Uncommon Files |
| .CD150 | Uncommon Files |
| .CD2 | Page Layout Files |
| .CD3 | Uncommon Files |
| .CD4 | Uncommon Files |
| .CD5 | Uncommon Files |
| .CD6 | Uncommon Files |
| .CD7 | Uncommon Files |
| .CD8 | Uncommon Files |
| .CD9 | Uncommon Files |
| .CDA | Audio Files |
| .CDAT | Uncommon Files |
| .CDB | Database Files |
| .CDBCMSG | Database Files |
| .CDBK | Uncommon Files |
| .CDC | Raster Image Files |
| .CDD | Vector Image Files |
| .CDDA | Audio Files |
| .CDDS | Uncommon Files |
| .CDE | Uncommon Files |
| .CDEV | Uncommon Files |
| .CDEVSAMPLE | Uncommon Files |
| .CDF | Data Files |
| .CDG | Raster Image Files |
| .CDH | Uncommon Files |
| .CDI | Disk Image Files |
| .CDJ | Uncommon Files |
| .CDK | Uncommon Files |
| .CDKEY | Uncommon Files |
| .CDL | Plugin Files |
| .CDM | Disk Image Files |
| .CDMIA | Text Files |
| .CDMIC | Text Files |
| .CDMID | Text Files |
| .CDMIO | Text Files |
| .CDMIQ | Text Files |
| .CDMM | Vector Image Files |
| .CDMP | System Files |
| .CDN | Uncommon Files |
| .CDO | Audio Files |
| .CDP | Data Files |
| .CDPRJ | Uncommon Files |
| .CDPX | Data Files |
| .CDPZ | Data Files |
| .CDQ | Uncommon Files |
| .CDR | Audio Files |
| .CDRZIP | Uncommon Files |
| .CDS | Uncommon Files |
| .CDSC | Uncommon Files |
| .CDSG | Uncommon Files |
| .CDT | Disk Image Files |
| .CDU | Uncommon Files |
| .CDV | Uncommon Files |
| .CDW | Uncommon Files |
