List of filename extensions / F
This list contains common file name extensions that are used in some operating systems to differentiate between file formats . In other operating systems, file type identification is mainly carried out using the file header, and the MIME type is more important than the file name extension for e-mail attachments . Systems that use the latter two approaches usually ignore the extension completely.
| Filename extension | MIME type | Full name | Remarks, usage |
|---|---|---|---|
| .f | FREEZE | Compressed file archive | |
| .f or .F | text / plain, text / x-fortran | FORTRAN | Fortran source code |
| .f01 | Fax document | Perfect fax | |
| .f03 or .F03 | Fortran 2003 | Fortran 2003 source code | |
| .f06 – .f16 | Dos screen text font | Height = 6-16 pixels | |
| .f08 or .F08 | Fortran 2008 | Fortran 2008 source code | |
| .f18 or .F18 | Fortran 2018 | Fortran 2018 source code | |
| .f2r | Linear music module | Farandole | |
| .f3r | Blocked music module | Farandole | |
| .f77 | text / x-fortran | FORTRAN 77 | FORTRAN 77 source code |
| .f90 or .F90 | text / plain, text / x-fortran | Fortran 90 | Fortran 90 source code |
| .f95 or .F95 | Fortran 95 | Fortran 95 source code | |
| .f96 | Fax document | Frecom FAX96 | |
| .fa | Fasta format | (one of the commonly used filename extensions) DNA or protein sequence | |
| .fac | Face graphic | - | |
| .faq | Frequently Asked Questions | frequently asked Questions | |
| .far | Farandole | Tracker module ( music format ) of the Farandole Composer | |
| .fas | Basic module file | 3-D facade plus | |
| .fav | Navigation bar | Microsoft Outlook | |
| *.fax | = / ≈ TIFF / TIF rsp. BTF (BigTIF [F])? | FAX Type Image | Telefaxsimilie / Telefax (hence the name FAX / *. Fax) |
| *.fax | - | Veritas BackupExec report file | |
| .fb2 | FictionBook | An open XML based e-book format | |
| .fbff | Favorite backup file | Mozilla Firefox bookmarks backup | |
| .fbie | Favorite backup file | Internet Explorer bookmarks backup | |
| .fbk | Financials backup | Microsoft Dynamics NAV (Navision Financials Native Backup) | |
| .fbk | - | Proficy iFIX General Electric application backup | |
| .fbop | Favorite backup file | Opera bookmarks backup | |
| .fbx | 3D exchange format | Autodesk Maya, 3D Studio MAX | |
| .fc | Spell Check dictionary | Harvard Graphics | |
| .fcd | Virtual CD-ROM file | - | |
| .fcm | Binary file patch | Forward compression | |
| .FCStd | FreeCAD Standard file format | Exchange format for FreeCAD | |
| .fd | Declaration file | FORTRAN | |
| .fd | Field offsets | DataFlex compiler | |
| .fdb | Financials Database | Microsoft Dynamics NAV (Navision Financials Native-Database) | |
| .fdb | font definition block | Font library for Ming | |
| .fdf | application / vnd.fdf | form | Adobe Acrobat |
| .fdw | form | F3 Design and Mapping | |
| .feb | Figure Editor Button Bar | WordPerfect for Windows | |
| .fem | Finite element mesh | CADRE | |
| .feq | text / plain | frequency | Equalizer presets in foobar2000 |
| .ff | Outline font description | AGFA CompuGraphics | |
| .ffa | find fast file | Microsoft | |
| .fff | Fax document | defFax | |
| .fff | GUS PnP bank file | - | |
| .ffl | Image file | PrintMaster Gold | |
| .ffl | fast find file | Microsoft | |
| .ffo | fast find file | Microsoft | |
| .fft | Final Form Text | Part of IBM DCA | |
| .ffx | fast find file | Microsoft | |
| .fh3 | Freehand 3 drawing | Vector graphic ( Aldus ) | |
| .fh4 | Freehand 4 drawing | Vector graphic (Aldus) | |
| .fh5 | Freehand 5 drawing | Vector graphic (Macromedia) | |
| .fh6 | Freehand 6 drawing | Vector graphic (Macromedia) | |
| .fh7 | Freehand 7 drawing | Vector graphic (Macromedia) | |
| .fh8 | Freehand 8 drawing | Vector graphic (Macromedia) | |
| .fh9 | Freehand 9 drawing | Vector graphic (Macromedia) | |
| .fh10 | Freehand 10 drawing | Vector graphic (Macromedia) | |
| .fh11 | Freehand 11 drawing | Vector graphic (Macromedia) | |
| .fhmx | Freehand MX | Vector graphic (Adobe) | |
| .fi | File interface | FORTRAN | |
| .fif | application / fractals, image / fif | Fractal image | - |
| .fig | REND386 / AVRIL file | - | |
| .fig | FIG image text | Vector drawings of the program Xfig | |
| .fig | SNES ROM image | Dump of a Nintendo SNES game (with Pro Fighter header) for use in an emulator | |
| .fig | Matlab figure | ||
| .fil | List Object | dBase application generator | |
| .fil | Template | Application generator | |
| .fil | Overlay | WordPerfect for Windows | |
| .fil | file | Source file renamed by Novell SnAppShot to be distributed using Novell ZENworks (Software Distribution) | |
| .fil | file | File moved to the Virus Vault by AVG Antivirus | |
| .fin | Print formatted text | Perfect Writer | |
| .fit | Index table | Microsoft Windows NT | |
| .fit | Graphic | FITS | |
| .fits | CCD camera image | FITS | |
| .fits | Flexible image transport system | FITS | |
| .fix | Patch file | Generic | |
| .fix | Fix image | Georeferenced raster image format | |
| .fky | Macro | Microsoft FoxPro | |
| .fla | Movie | Adobe Flash | |
| .fla .flac |
audio / flac | Free Lossless Audio Codec | free, losslessly compressing audio format ( Ogg -CoDec family) |
| .flb | Format library | papyrus | |
| .flc | FLIC animation | Autodesk Animator , Autodesk 3D-Studio, see also .fli | |
| .fld | Field define module | 3-D facade plus | |
| .fld | Folder | charisma | |
| .flf | Delived form | Corel Paradox | |
| .flf | Driver | OS / 2 driver | |
| .flf | Financials License File | Microsoft Dynamics NAV | |
| .fli | video / x-fli, video / fli | FLIC animation 320x200 | Autodesk Animator , see also .flc |
| .fli |
|
Font library | EmTeX |
| .fll | dynamic link library | Microsoft Visual FoxPro | |
| .flm | Film roll | AutoCAD | |
| .flo | image / florian | FlowCharter file | Micrografx |
| .flp | Flower-Project leecher file | FLP leechers | |
| .flp | VMWare diskette image file | VMWare | |
| .fls | Filelist document | Farrukh Imposition Publisher | |
| .flst | Transparency flattening requirement | Adobe InDesign | |
| .flt | filter | Corel | |
| .flt | filter | Micrografx Picture Publisher | |
| .flt | Graphics filter | Microsoft | |
| .flt | Graphics filter support file | Asymetrix ToolBook | |
| .flt | Music module | MOD (StarTrekker) | |
| .flt | Open flight file | MulitGen | |
| .flv | video / x-flv | Flash video | Adobe |
| .flw | Document line measurement | Freelance | |
| .flx | text / vnd.fmi.flexstor | Compiled binary file | DataFlex |
| .fm | FrameMaker Document | Adobe | |
| .fm | Spreadsheet | FileMaker Pro | |
| .fm1 | Spreadsheet | Lotus 1-2-3, version 2.x | |
| .fm3 | Device driver | Harvard Graphics, version 3.0 | |
| .fm3 | Spreadsheet | Lotus 1-2-3, version 3.x | |
| .fmb | Forms sources | Oracle, v4.x and newer | |
| .fmb | File manager button bar | WordPerfect for Windows | |
| .fme | FMEA file | IQ FMEA for Windows | |
| .fmf | video / x-atomic3d-feature | Font or Icon | IBM LinkWay |
| .fmk | MakeFile | FORTRAN PowerStation | |
| .fml | Mirror list | Oracle | |
| .fmo | Compiled format | dBase IV | |
| .fmp | Document file | FileMaker Pro | |
| .fmt | Csreen format file | Microsoft Visual FoxPro | |
| .fmt | Print file | Microsoft Schedule + | |
| .fmt | Style sheet | sprint | |
| .fmt | Text format for form | Oracle, v4.x and newer | |
| .fmx | Executable form | Oracle, v4.x and newer; FileMaker Extension | |
| .fn3 | Font | Harvard Graphics | |
| .fnd | Find applet | Microsoft Explorer Saved Search | |
| .fnf | Score file for ForteFree | ||
| .fng | Font group | Font Navigator | |
| .fnk | FunkTracker | Tracker module ( music format ) of the FunkTracker | |
| .fnt | Font | Typefaces , bitmap fonts | |
| .fnx | Inactive font | Exact | |
| .fO1 .f02 |
Font | Borland Turbo C | |
| .fo5 | FotoOrderV5 File | ||
| .fog | Fontographer font | - | |
| .fol | Saved message folder | 1st reader | |
| .hairdryer | Call log | Procomm Plus | |
| .hairdryer | Dialing directory | Telix | |
| .hairdryer | Font | Typefaces , bitmap fonts | |
| .font | Font | Character set (Amiga) | |
| .for | shape | WindowBase | |
| .for or .FOR | text / plain, text / x-fortran | FORTRAN | FORTRAN source code |
| .fot | Font-related file | - | |
| .fot | Installed TrueType font | Microsoft Windows Font Installer | |
| .fp | FoxPro | Configuration file | |
| .fp | FileMaker Pro file | - | |
| .fp1 | "Flying Pigs" | Microsoft Windows 9.x screen saver data | |
| .fp3 | FileMaker Pro file | FileMaker Pro v.3 & 4 document | |
| .fp5 | FileMaker Pro file | FileMaker Pro v.5 document | |
| .fp7 | FileMaker Pro file | FileMaker Pro v.7 document | |
| .fpc | Catalog file | FoxPro | |
| .fpl | Playlist file | Foobar 2000 | |
| .fpt | FileMaker Pro file | - | |
| .fpt | Memo fields | Microsoft FoxPro | |
| .fpw | Floor plan drawing | FloorPlan Plus for Windows | |
| .fpx | image / vnd.fpx, image / vnd.net-fpx | Kodak FlashPix | FlashPix |
| .fr3 | Renamed dBaseIII + form | dBase IV | |
| .fra | text / plain | Fractalzer settings | Contains all data of a fractal |
| .frf | Font | FontMonger | |
| .frg | Uncompiled report | dBase IV | |
| .frk | Zip | macintosh | |
| .frm | document | FrameMaker or FrameBuilder | |
| .frm | Executable file | Oracle, v3.0 and earlier | |
| .frm | Form source file | Delphi form source code | |
| .frm | Form source file | Visual Basic form source code | |
| .frm | Merge form | WordPerfect for Windows | |
| .frm | Report icon | DataCAD | |
| .fro | Compiled report | dBase IV | |
| .frp | form | PerForm PRO Plus | |
| .frs | Screen Font Resource | WordPerfect for Windows | |
| .frt | Report menu | FoxPro | |
| .frx | Form stash file | Visual Basic | |
| .frx | report | Microsoft FoxPro | |
| .fs | F # | F # is a functional programming language from Microsoft for the .NET Framework | |
| .fsf | fPrint Audit Tool | - | |
| .fsl | form | Borderland / Corel Paradox for Windows | |
| .fsm | Sample file | Farandoyle | |
| .fst | Linkable program | dBFast | |
| .fsx | Data | Lotus 1-2-3 | |
| .fsy | FSync Document | FileSync - File Syncroniser | |
| .fsync | Keep-In-Sync synchronization information | Contains synchronization information for the Keep-In-Sync file synchronization software | |
| .ft | Full text index | Lotus Notes | |
| .ftb | Index file | Roots3 | |
| .ftf | - | AS / 400 client - server configuration | |
| .ftg | full-text search group | Microsoft Windows Help | |
| .ftl | Film transfer log | Storage format for movies. Can e.g. B. be generated with VIDCAP. | |
| .ftl | Form / Temporary | Temporary form of a Paradox database generated at runtime. | |
| .ftm | Font | Micrografx | |
| .ftp | File Transfer Protocol | FTP script | |
| .ftr | - | Graphics file | |
| .fts | full-text search index | Windows Help | |
| .fts | - | FITS | |
| .ftw | document | Family Tree Maker | |
| .fw | Firmware | Device firmware file | |
| .fw | Database | Framework II | |
| .fw2 ... .fw4 |
Database | Framework II ... IV | |
| .fwb | FileWrangler Backup | - | |
| .fws | FileWrangler Data | - | |
| .fx | On-line guide | FastLynx | |
| .fx4 | Pixel map | Fugawi | |
| .fxd | Phonebook | FAXit | |
| .fxp | Compiled source code | FoxPro | |
| .fxr | Fax Received Document | WinFax (Symantec Corporation) | |
| .fxs | Fax transmit graphic | WinFax (Symantec Corporation) | |
| .fzb | Bank dump file | Casio FZ-1 | |
| .fzf | Full dump file | Casio FZ-1 | |
| .fzv | Voice dump file | Casio FZ-1 |