| fga | Folder Guard Attributes File |
| fgb | Talysurf CCI 3000 Frame Sequence Data |
| fgd | Folder Guard Data File |
| fgd | Macromedia Director Graphics Data |
| fgdb | Fontographer Mac Database |
| fgdump-log | fgdump Log |
| fgf | Nav.Net NG Fusker Generator Data |
| fgl | Inno Setup Component Definitions Data |
| fgp | Folder Guard Password File |
| fgr | FRSGiftRegistry Data File |
| fgt | FreeGantt Skeleton Data |
| fgv | CellexalVR FGV Data |
| fh | Backup Exec File History Data |
| fh40 | Adobe FreeHand for Mac Data |
| fh50 | Adobe FreeHand Creator Code |
| fha3 | Adobe FreeHand for Mac Data |
| fhb | ForeHelp Backup File |
| fhc | Adobe FreeHand Data |
| fhc | Canute FHC Data FIle |
| fhd | MODFLOW Model Head Data |
| fhd3 | Adobe FreeHand 3 for Mac Data |
| fhf | Free Hide Folder Backup |
| fhi | ABINIT FHI Data |
| fhis | Insight II Dynamics Trajectory History Data |
| fhlp | Fetch Help Data |
| fhp | MusicPad Pro Playlist |
| fhq | Family Historian Query |
| fhr | Family Historian Data |
| fht | Family Historian Text Scheme Data |
| fhtml | Macromedia Flash HTML Data |
| fhx | DeltaV Database File |
| fh_proj | Family Historian Project |
| fia | FIA Input Data |
| fib | File Investigator Internal Database |
| fid | File Investigator Internal Database |
