| Extension |
File Type |
File Description |
| .f | Developer | Fortran Source Code (Most common) |
| .f2r | Audio | Farandoyle Linear Module File |
| .f32 | Audio | Raw 32-Bit Audio File |
| .f3r | Audio | Farandoyle Blocked Module File |
| .f4v | Video | Flash MP4 Video File |
| .f64 | Audio | Raw 64-Bit Audio File |
| .f90 | Developer | Fortran 90 Source File |
| .fa | Data | FASTA Formatted Sequence File |
| .fac | Image | FACE Graphic |
| .face | Image | FACE Graphic |
| .fal | Raster Image | Bitmap Graphic Header Information |
| .faq | Text | Frequently Asked Questions Document |
| .far | Audio | Farandole Composer Module (Most common) |
| .fas | Executable | Compiled Fast-Load AutoLISP File |
| .fasta | Data | FASTA Sequence File |
| .fax | Raster Image | Fax Document |
| .fb2 | Text | FictionBook 2.0 File |
| .fbc | Backup | Family Tree Maker for DOS Backup File |
| .fbf | Backup | Free Backup Fix Backup File |
| .fbk | Backup | Microsoft Dynamics NAV Backup File (Most common) |
| .fbl | Text | CADfix Command Level Log File |
| .fbm | Image | Fuzzy Bitmap |
| .fbp | Developer | wxFormBuilder Project |
| .fbr | Video | FlashBack Screen Recording |
| .fbu | Backup | FEBE Firefox Backup File |
| .fbx | Image | Autodesk FBX Interchange File |
| .fbz | Video | FlashBack Screen Recorder Movie |
| .fc2 | Image | Poser Face Pose File |
| .fc2map | Game | Far Cry 2 User Map |
| .fcc | Settings | Forms Credential Collector File |
| .fcd | Data | First Choice Database (Most common) |
| .fcp | Video | Final Cut Project |
| .fcs | Data | First Choice Spreadsheet |
| .fcw | Image | FastCAD Windows Drawing |
| .fcz | Image | Compressed Poser Face Pose File |
| .fd2 | Page Layout | PictureMate Borders File |
| .fdb | Data | Portfolio Catalog (Most common) |
| .fdf | Text | Acrobat Forms Data Format |
| .fdi | Disk | Amiga Disk Image |
| .fdp | Compressed | MySafe Encrypted Data |
| .fdr | Text | Final Draft Document (Most common) |
| .fds | Text | Final Draft Secure Copy |
| .fes | Text | Fileless Occurrence Placeholder |
| .fev | Settings | FLAMES Environment Variable File |
| .ff | Game | Call of Duty 4 Fast File |
| .ffa | System | Find Fast Status File |
| .ffd | Data | Flat File Description |
| .fff | Audio | Gravis UltraSound Sound Bank |
| .ffil | Font | Mac Font Suitcase |
| .ffl | System | Find Fast Document List |
| .ffo | System | Find Fast Document Properties Cache |
| .ffwp | Data | FormsForWeb Packet |
| .ffx | System | Microsoft Find Fast Index |
| .fgl | Developer | Fifth Generation Language Source File |
| .fh9 | Image | FreeHand 9 Drawing File |
| .fhc | Data | FHC Data File |
| .fhd | Image | FreeHand Drawing File |
| .fic | Developer | WINDEV Hyper File Database |
| .fid | Data | File Expander Engine Descriptions Database |
| .fig | Vector Image | Xfig Drawing |
| .fil | Data | Files List Object File (Most common) |
| .file | Misc | Generic Windows File |
| .fits | Image | Flexible Image Transport System |
| .fky | Executable | FoxPro Macro |
| .fla | Developer | Adobe Flash Animation |
| .flac | Audio | Free Lossless Audio Codec File |
| .flame | Data | Fractal Flame File |
| .flc | Video | FLIC Animation |
| .flf | Misc | Microsoft Dynamics NAV License File |
| .flh | Video | FLIC Animation File |
| .fli | Video | FLIC Animation |
| .fll | Data | FoxPro Dynamic-Link Library |
| .flo | Data | iGrafx FlowCharter File (Most common) |
| .flp | Misc | Flash Project (Most common) |
| .flr | Text | Flare Decompiled ActionScript File |
| .fls | Audio | Flash Lite Sound Bundle (Most common) |
| .flt | Plugin | Image Filter (Most common) |
| .flv | Video | Flash Video File |
| .flx | Video | FLIC Animation (Most common) |
| .fm | Data | FileMaker Spreadsheet (Most common) |
| .fm5 | Data | FileMaker 5 Database |
| .fml | Game | WWE RAW Character File |
| .fmp | Data | FileMaker Pro Database (Most common) |
| .fmt | Settings | FoxPro Format File |
| .fmx | Plugin | FileMaker Plug-in |
| .fnc | Misc | QuickCAM 3D CNC File (Most common) |
| .fnt | Font | Windows Font File |
| .fo | Data | XSL-FO Form |
| .fob | Data | Dynamics NAV Object Container File |
| .fon | Font | Generic Font File |
| .fop | Data | InfoZoom Protected Data File |
| .for | Developer | Fortran 77 Source File |
| .fox | Data | InfoZoom Data File |
| .fp | Data | FileMaker Pro Spreadsheet |
| .fp3 | Data | FileMaker Pro 3 Database (Most common) |
| .fp3 | Data | FileMaker Pro 3 Database (Most common) |
| .fp4 | Data | FileMaker Pro 4 Database |
| .fp5 | Data | FileMaker Pro 5 Database |
| .fp7 | Data | FileMaker Pro 7+ Database |
| .fpa | Developer | Front Panel Encrypted Order File |
| .fpbf | System | Mac OS X Burn Folder |
| .fpd | Developer | Front Panel Order File |
| .fpf | Image | IKEA Home Planner File |
| .fpfv | Misc | File Protected From Virus |
| .fpk | Misc | JetForm FormFlow File |
| .fpm | Developer | FPS Creator Map File |
| .fpp | Developer | Front Panel Project (Most common) |
| .fpt | Text | FileMaker Pro Database Memo File (Most common) |
| .fpx | Raster Image | FlashPix Bitmap Image File |
| .framework | Developer | Mac OS X Application Framework |
| .frk | Misc | Macintosh Resource or Data Fork |
| .frl | Data | Electronic Form Loader |
| .frm | Misc | Form File (Most common) |
| .fro | Data | dBASE IV Compiled Report |
| .frs | Executable | Flash Renamer Script |
| .frt | Text | FoxPro Report Memo |
| .frx | Data | FoxPro Report (Most common) |
| .frz | Misc | Locked FormFlow File |
| .fs | Image | FlexiSIGN Document (Most common) |
| .fs2 | Game | FreeSpace 2 Saved Mission File |
| .fsb | Data | FMOD Sample Bank File |
| .fsc | Data | Practical Scriptwriter File |
| .fsm | Audio | Farandole Composer WaveSample File (Most common) |
| .fsproj | Developer | FireStarter Project File |
| .fss | Encoded | Splitty Data Split File |
| .fst | Game | Crazy Machines 2 Object File |
| .ftg | System | Full Text Group |
| .ftil | Misc | e-Hastakshar Contract Note |
| .ftm | Data | Family Tree Maker for DOS File |
| .ftploc | Misc | FTP Location |
| .fts | System | Full Text Search |
| .ftw | Data | Family Tree Maker File |
| .ful | Backup | Microsoft Backup File List |
| .fw | Misc | Firmware Update File |
| .fwt | Settings | FacetWin Configuration File |
| .fxb | Plugin | VST Audio Plug-in |
| .fxc | Text | FilePackager Configuration |
| .fxg | Vector Image | Flash XML Graphics File |
| .fxp | Executable | FoxPro Compiled Source (Most common) |
| .fxt | Plugin | Finale Plug-in |
| .fzb | Audio | Casio FZ-1 Bank Dump |
| .fzf | Audio | Casio FZ-1 Full Dump |
| .fzv | Audio | Casio FZ-1 Voice Dump |
