| fnx | Fenix Key Data |
| fo | 602XML Form Filler Data |
| fob | Microsoft Dynamics NAV Object Container |
| foc | FOCUS Database |
| fod | EZ-Forms Form Relationship Data |
| fof | EZ-Forms Filled Out Form |
| fog4 | Fontographer v4 Data |
| fol | PFS First Choice Database |
| folder | Windows Explorer Folder Data |
| foli | Foliaro Data |
| folx | Folx Download Data |
| fom | EZ-Forms Fill Out Master Form |
| fon | COREX Manual Broad Phonetic Transcription Data |
| fop | InfoZoom Protected Data |
| fot | InfoZoom Template |
| fov | MORSE FOV Data |
| fow | Family Origins Database |
| fox | InfoZoom Table |
| fp | CRiSP Harvest Fishery Policy Data |
| fp1 | RPOWER.Gift Cards Data |
| fp10 | FileMaker Pro V10 Data |
| fp3 | FileMaker Pro V3 Data |
| fp4 | FileMaker Pro V4 Data |
| fp5 | FileMaker Pro V5 Data |
| fp6 | FileMaker Pro V6 Data |
| fp7 | FileMaker Pro V7 Data |
| fpa | MakeMusic Finale Performance Assessment |
| fpb | FLAMES Playback File |
| fpbf | Mac OS X Finder Burn Folder |
| fpc | Microsoft Visual FoxPro Catalog File |
