Windows
Support Guide

Applies to: Microsoft Windows (All versions)
Home Find file extension (eg.: .doc,.png)

File extension?

A file extension is a suffix to the name of a computer file, which defines and determines easily the file's generic type. In Windows and DOS operating system file extension is a requirement whereas, in some other operating system such as UNIX it is optional. Usually the file extension consists of two, three or four characters following a period.
Awards
Systweak products are running on
over 10 million computers worldwide
"Winner of over 100 5-star awards"
Recently updated file extensions

# | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |

Find file extension (eg.: .pdf)

.f - Source code and script files

.f03 - Miscellaneous file type

.f10 - Miscellaneous file type

.f11 - Miscellaneous file type

.f14 - Font file type

.f16 - Font file type

.f2r - Audio file type

.f32 - Miscellaneous file type

.f3d - Data file type

.f3dp - Miscellaneous file type

.f3r - Miscellaneous file type

.f4 - Source code and script files

.f4a - Miscellaneous file type

.f4p - Miscellaneous file type

.f4v - Video file type

.f64 - Miscellaneous file type

.f77 - Miscellaneous file type

.f9 - Miscellaneous file type

.f90 - Source code and script files

.f95 - Source code and script files

.f96 - Miscellaneous file type

.fac - Image file type

.face - Image file type

.fad - Data file type

.fam - Game file type

.FAN - Miscellaneous file type

.faq - Text file type

.far - Audio file type

.farmfrenzypizzapart...dll - Miscellaneous file type

.fas - Executable file type

.fasta - Data file type

.fateundiscoveredrea...dll - Game file type

.fav - Miscellaneous file type

.fax - Graphic file type

.fba - Miscellaneous file type

.fbal - Miscellaneous file type

.FBAlert - Miscellaneous file type

.fbap - Miscellaneous file type

.fbbackup - Miscellaneous file type

.FBBJ - Miscellaneous file type

.fbbjt - Miscellaneous file type

.FBBkCfg - Miscellaneous file type

.fbbt - Miscellaneous file type

.fbc - Backup file type

.FBCB - Miscellaneous file type

.fbcfg - Miscellaneous file type

.fbd - Database file type

.fbexplore - Miscellaneous file type

.fbfileset - Miscellaneous file type

.fbfilesetx - Miscellaneous file type

.fbk - Backup file type

.fbl - Text file type

.fbl6 - Miscellaneous file type

.fbl7 - Miscellaneous file type

.fbm - Image file type

.fbopts - Miscellaneous file type

.fboptsx - Miscellaneous file type

.fbp - Miscellaneous file type

.fbp6 - Miscellaneous file type

.fbp7 - Miscellaneous file type

.fbpinf - Miscellaneous file type

.fbr - Miscellaneous file type

.fbt - Miscellaneous file type

.fbv - Miscellaneous file type

.fbwins - Miscellaneous file type

.fbwinsx - Miscellaneous file type

.fbx - Miscellaneous file type

.FBZ - Miscellaneous file type

.fbz6 - Miscellaneous file type

.fbz7 - Miscellaneous file type

.fc - Miscellaneous file type

.fc3 - Miscellaneous file type

.fca - Miscellaneous file type

.fcb - Miscellaneous file type

.fcc4 - Miscellaneous file type

.fcd - Database file type

.fcl - Graphic file type

.fcm - Data file type

.fcp - Miscellaneous file type

.fcs - Data file type

.fcz - Miscellaneous file type

.fd - Source code and script files

.FDB - Database file type

.fdc - Miscellaneous file type

.fdf - Text file type

.fdlang2 - Miscellaneous file type

.fdm - Miscellaneous file type

.FdmUplSendToShlExt - Miscellaneous file type

.fdpart - Miscellaneous file type

.fdproject - Miscellaneous file type

.fdr - Miscellaneous file type

.fds - Data file type

.FDSRCH2 - Miscellaneous file type

.fdw - Text file type

.fdx - Miscellaneous file type

.fdxsl2 - Miscellaneous file type

.fe - Miscellaneous file type

.feature - Miscellaneous file type

.feb - Miscellaneous file type

.feed - Miscellaneous file type

.feedback - Miscellaneous file type

.fei - Miscellaneous file type

.fem - Miscellaneous file type

.fep - Miscellaneous file type

.fes - Text file type

.ff - Source code and script files

.ff0 - Miscellaneous file type

.ff1 - Miscellaneous file type

.ff2 - Miscellaneous file type

.ff3 - Miscellaneous file type

.ff4 - Miscellaneous file type

.ff5 - Miscellaneous file type

.ff6 - Miscellaneous file type

.ff7 - Miscellaneous file type

.ff8 - Miscellaneous file type

.ff9 - Miscellaneous file type

.ffa - System file type

.ffd - Data file type

.ffe - Image file type

.fff - Miscellaneous file type

.ffi - Miscellaneous file type

.ffivw - Binary file type

.ffl - System file type

.ffo - Miscellaneous file type

.fft - Data file type

.ffx - Miscellaneous file type

.fga - Miscellaneous file type

.fgc - Text file type

.fgcp - Miscellaneous file type

.fgp - Miscellaneous file type

.fh_proj - Miscellaneous file type

.fh10 - Miscellaneous file type

.fh11 - Miscellaneous file type

.fh3 - Miscellaneous file type

.fh4 - Miscellaneous file type

.fh5 - Miscellaneous file type

.fh7 - Miscellaneous file type

.fh8 - Miscellaneous file type

.fh9 - Miscellaneous file type

.fhc - Miscellaneous file type

.fhd - Miscellaneous file type

.fhf - Miscellaneous file type

.fhq - Miscellaneous file type

.fhr - Miscellaneous file type

.fhs - Miscellaneous file type

.fht - Miscellaneous file type

.fhx - Miscellaneous file type

.fhz - Miscellaneous file type

.fi - Graphic file type

.fido - Graphic file type

.fif - Image file type

.fig - Graphic file type

.fil - Data file type

.filters - Miscellaneous file type

.fin - Miscellaneous file type

.fio - Graphic file type

.fit - Graphic file type

.fits - Image file type

.fix - Miscellaneous file type

.fkc - Miscellaneous file type

.fkd - Miscellaneous file type

.fkt - Miscellaneous file type

.fky - Executable file type

.fla - Internet related file type

.flac - Audio file type

.FlashFXP_PI - Miscellaneous file type

.FlashFXP_PIcon - Miscellaneous file type

.flb - Data file type

.flc - Video file type

.fld - Miscellaneous file type

.flh - Video file type

.fli - Video file type

.flic - Video file type

.FLInstaller - Miscellaneous file type

.flk - Miscellaneous file type

.FLKEY - Miscellaneous file type

.flm - Image file type

.flo - Miscellaneous file type

.flow - Miscellaneous file type

.flp - Data file type

.FLS - Miscellaneous file type

.flst - Miscellaneous file type

.flt - Plugin file type

.flv - Video file type

.flvat - Video file type

.flw - Miscellaneous file type

.flx - Video file type

.flyer - Miscellaneous file type

.flz - Miscellaneous file type

.fm - Text file type

.fm1 - Miscellaneous file type

.fm3 - Miscellaneous file type

.fm4 - Miscellaneous file type

.fmb - Miscellaneous file type

.fmc - Video file type

.fmf - Miscellaneous file type

.fmi - Miscellaneous file type

.fmj - Miscellaneous file type

.fmk - Data file type

.fmo - Database file type

.fmp - Miscellaneous file type

.fms - Miscellaneous file type

.fmt - Configuration file type

.fmx - Miscellaneous file type

.fn3 - Graphic file type

.fnc - Miscellaneous file type

.fnd - Miscellaneous file type

.fni - Data file type

.fnk - Audio file type

.fnn - Miscellaneous file type

.fnrt - Miscellaneous file type

.fnt - Font file type

.fo - Miscellaneous file type

.fo2 - Font file type

.fog - Database file type

.fol - Data file type

.folder - System file type

.fon - Font file type

.font - Font file type

.fop - Data file type

.for - Source code and script files

.fot - Font file type

.fox - Data file type

.fp - Configuration file type

.fp3 - Database file type

.fp4f - Miscellaneous file type

.fp5 - Database file type

.fp7 - Miscellaneous file type

.fpc - Miscellaneous file type

.fpd - Source code and script files

.fpdoclib - Miscellaneous file type

.fphomeop - Miscellaneous file type

.fphomepg - Miscellaneous file type

.fphtml - Miscellaneous file type

.fpl - Miscellaneous file type

.fplinkbar - Miscellaneous file type

.fplist - Miscellaneous file type

.fplistdata - Miscellaneous file type

.fpm - Database file type

.fpnav - Miscellaneous file type

.fpnopub - Miscellaneous file type

.fpopen - Miscellaneous file type

.fpos - Miscellaneous file type

.fpp - Miscellaneous file type

.fppiclib - Miscellaneous file type

.fps - Miscellaneous file type

.fpsl - Miscellaneous file type

.fpsurvey - Miscellaneous file type

.fpt - Database file type

.fptheme - Miscellaneous file type

.fpu - Configuration file type

.fpw - Miscellaneous file type

.fpweb - Miscellaneous file type

.fpx - Graphic file type

.fpxml - Miscellaneous file type

.fqf - Miscellaneous file type

.fr? - Miscellaneous file type

.fr3 - Database file type

.fr4 - Data file type

.fra - Data file type

.FRAGMENT - Miscellaneous file type

.frd - Miscellaneous file type

.fre - Graphic file type

.freecellsave-ms - Game file type

.frf - Miscellaneous file type

.frg - Audio file type

.fri - Data file type

.frl - Data file type

.frm - Text file type

.fro - Data file type

.frp - Data file type

.frp7 - Miscellaneous file type

.frs - Source code and script files

.frt - Data file type

.frx - Data file type

.frz - Miscellaneous file type

.fs - Image file type

.fsac - Miscellaneous file type

.fsb - Audio file type

.FSC - Miscellaneous file type

.fscproj - Miscellaneous file type

.fsd - Miscellaneous file type

.fsf - Miscellaneous file type

.fsfix - Miscellaneous file type

.fsg - Data file type

.fsh - Miscellaneous file type

.fsi - Miscellaneous file type

.fskey - Miscellaneous file type

.fsl - Database file type

.fsm - Game file type

.fsn - Miscellaneous file type

.fsp - Data file type

.fsproj - Source code and script files

.fsqueue - Miscellaneous file type

.fsscript - Miscellaneous file type

.fst - Data file type

.fsx - Data file type

.ft10 - Miscellaneous file type

.ft11 - Miscellaneous file type

.ft2 - Miscellaneous file type

.ft3 - Miscellaneous file type

.ft4 - Miscellaneous file type

.ft5 - Miscellaneous file type

.ft8 - Miscellaneous file type

.ft9 - Miscellaneous file type

.ftd - Miscellaneous file type

.ftg - Miscellaneous file type

.fth - Miscellaneous file type

.ftm - Data file type

.ftn95p - Miscellaneous file type

.ftp - Configuration file type

.ftpc - Miscellaneous file type

.fts - Graphic file type

.ftv - Miscellaneous file type

.ftw - Data file type

.ftx - Text file type

.fun - Miscellaneous file type

.fuze - Miscellaneous file type

.fvc - Miscellaneous file type

.FVM - Miscellaneous file type

.fvp - Miscellaneous file type

.FVS - Miscellaneous file type

.fvt - Miscellaneous file type

.fvx - Miscellaneous file type

.fvxb - Miscellaneous file type

.fw - Miscellaneous file type

.fw2 - Miscellaneous file type

.fw3 - Miscellaneous file type

.fwa - Miscellaneous file type

.fwb - Miscellaneous file type

.fwd - Miscellaneous file type

.fweb - Miscellaneous file type

.fwk - Text file type

.fwl - Miscellaneous file type

.fwp - Miscellaneous file type

.fx - Miscellaneous file type

.fxb - Miscellaneous file type

.fxc - Miscellaneous file type

.fxd - Miscellaneous file type

.fxe - Miscellaneous file type

.fxf - Miscellaneous file type

.fxg - Miscellaneous file type

.fxi - Miscellaneous file type

.fxm - Miscellaneous file type

.fxp - Data file type

.fxpl - Miscellaneous file type

.fxr - Miscellaneous file type

.fxregkey - Miscellaneous file type

.fxs - Graphic file type

.FXT - Miscellaneous file type

.fyf - Miscellaneous file type

.fzb - Miscellaneous file type

.fzf - Miscellaneous file type

.fzv - Miscellaneous file type

# | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |

 

All information © 2010 Systweak Inc. Advanced File Optimizer is promoted by Systweak. To remove Advanced File Optimizer simply uninstall the evaluation version. Systweak is not affiliated with Microsoft Corporation. Windows is a registered trademark of Microsoft Corporation.