| fom | EZ-Forms Fill Out Master Form |
| fop | InfoZoom Protected Data |
| fot | InfoZoom Template |
| fov | MORSE FOV Data |
| fow | Family Origins Database |
| fox | InfoZoom Table |
| 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 |
| fph | Fisher and Paykel Icon Data |
| fpj | Adobe RoboHelp Folder Contents |
| fpp | FPS Creator Prefab Data |
| fpq | Fluke Power Logger Data |
| fpqo | Fluke PowerLog 5 Data |
| fpsl | FileMaker Pro Snapshot Link |
| fpsml | PSML Fragment Definition |
| fpt | Alpha Five Memo Data |
| fpv | Flytrex Core Fly Log |
| fpz | IBM Rational Focal Point Data |
| fq | FASTQ Sequence |
| fqf | FlashFXP Queue Data |
| fr | STK Frequency Information File |
| fr3 | Fractal Explorer 3D Attractor |
| fr4 | Fractal Explorer Quaternion Spot |
| fra | Fractal Explorer Animation |
| fra | Adobe Acrobat Reader French Language Data |
| frac | Tinker Fractional Coordinates |