File extension	The full name of the file	Popularity
File extension F	Fortran Source Code
File extension F2R	Farandoyle Linear Module File
File extension F32	Raw 32-Bit Audio File
File extension F3D	Fusion 3D Design
File extension F3F	Crazy Machines Font File
File extension F3R	Farandoyle Blocked Module File
File extension F4A	Adobe Flash Protected Audio File
File extension F4F	Flash Video Fragment
File extension F4P	Adobe Flash Protected Media File
File extension F4V	Flash MP4 Video File
File extension F64	Raw 64-Bit Audio File
File extension F90	Fortran 90 Source Code File
File extension FA	FASTA Formatted Sequence File
File extension FAC	FACE Image File
File extension FACE	FACE Graphic File
File extension FACEFX	FaceFX Actor File
File extension FACEFX_INGAME	FaceFX In-Game Actor File
File extension FAL	Bitmap Graphic Header Information
File extension FAMILYFILE	Reunion Family File
File extension FAN	Form•Z Animation File
File extension FAQ	Frequently Asked Questions Document
File extension FAR	The Sims Archive File
File extension FAS	Compiled Fast-Load AutoLISP File
File extension FASTA	FASTA Sequence File
File extension FAT	Zinf Theme File
File extension FAVORITEMETADATA	Transmit Favorites Data File
File extension FAX	Fax Document
File extension FB!	FlashGet Incomplete Download File
File extension FB2	FictionBook 2.0 File
File extension FBC	Family Tree Maker for DOS Backup File
File extension FBF	Free Backup Fix Backup File
File extension FBK	Microsoft Dynamics NAV Backup File
File extension FBL	CADfix Command Level Log File
File extension FBM	Fuzzy Bitmap Image
File extension FBP	wxFormBuilder Project
File extension FBP7	FinalBuilder 7 Project
File extension FBR	FlashBack Screen Recording
File extension FBRB	Battlefield Bad Company 2 Data File
File extension FBT	ABBYY FineReader Document Options File
File extension FBU	FEBE Firefox Backup File
File extension FBW	HP Recovery Manager Backup File
File extension FBX	Autodesk FBX Interchange File
File extension FBZ	FlashBack Screen Recorder Movie
File extension FBZ7	Compressed FinalBuilder 7 Project
File extension FC2	Poser Face Pose File
File extension FC2MAP	Far Cry 2 User Map
File extension FCC	Forms Credential Collector File
File extension FCD	Virtual CD Format
File extension FCDT	FormsCentral Design Template
File extension FCE	EDraw Max file format
File extension FCF	Final Draft Converter File
File extension FCGI	FastCGI File
File extension FCL	FidoCAD library file
File extension FCM	fCraft World File
File extension FCP	Final Cut Project
File extension FCPROJECT	Final Cut Pro X Project File
File extension FCS	First Choice Spreadsheet
File extension FCSTD	FreeCAD Document
File extension FCT	FolderClone Task List
File extension FCW	FastCAD Windows Drawing
File extension FCZ	Compressed Poser Face Pose File
File extension FD	LaTeX Font Definition File
File extension FD2	PictureMate Borders File
File extension FDA	Dawn of War Audio File
File extension FDB	Database file
File extension FDC	AutoCAD Field Catalog File
File extension FDD	Parallels Desktop Floppy Disk Image File
File extension FDF	Acrobat Forms Data Format
File extension FDI	Amiga Disk Image
File extension FDM	Exchange Forms Designer Form Message
File extension FDP	FMOD Project File
File extension FDR	Final Draft Document
File extension FDS	FME Custom Format File
File extension FDT	Final Draft 5-7 Template
File extension FDX	Final Draft Document
File extension FDXT	Final Draft 8 Template
File extension FEATURE	SharePoint Feature File
File extension FEEDBACK	Expression SketchFlow Feedback File
File extension FES	Fileless Occurrence Placeholder
File extension FEV	FMOD Audio Events File
File extension FF	Call of Duty 4 Fast File
File extension FFA	Find Fast Status File
File extension FFD	FlashFiler file
File extension FFF	Hasselblad RAW Image
File extension FFIL	Mac Font Suitcase
File extension FFL	Find Fast Document List
File extension FFO	Find Fast Document Properties Cache
File extension FFS	FME Desktop Feature Store File
File extension FFT	Find Fast Indexer file
File extension FFWP	FormsForWeb Packet
File extension FFX	Find Fast Indexer index file
File extension FG	FaceGen Project File
File extension FG3	FX Graph 3 File
File extension FGD	Macromedia Director graphic file
File extension FGL	Fifth Generation Language Source File
File extension FH	Symantec Backup Exec File
File extension FH10	FreeHand 10 Drawing File
File extension FH11	FreeHand 11 Drawing File
File extension FH7	FreeHand 7 Drawing File
File extension FH8	FreeHand 8 Drawing File
File extension FH9	FreeHand 9 Drawing File
File extension FHC	FHC Data File
File extension FHD	FreeHand Drawing File
File extension FHF	Free Hide Folder Backup File
File extension FIC	WinDev Hyper File Database
File extension FID	File Expander Engine Descriptions Database
File extension FIF	Fractal Image File
File extension FIG	Xfig Drawing
File extension FIL	Files List Object File
File extension FILA	Aleph One Replay File
File extension FILE	Generic Windows File
File extension FILTERS	Visual C++ Project Filters File
File extension FIMPP	FiM++ Source Code File
File extension FIT	Flexible Image Transport System file
File extension FITS	Flexible Image Transport System File
File extension FKY	FoxPro Macro
File extension FL	Adobe Flash project file
File extension FL3	Flash 3D File
File extension FLA	Adobe Flash Animation
File extension FLAC	Free Lossless Audio Codec File
File extension FLAM3	Fractal Flames File
File extension FLAME	Fractal Flames File
File extension FLB	FileMaker Pro Label File
File extension FLC	FLIC Animation
File extension FLD	YSFLIGHT Field File
File extension FLF	Microsoft Dynamics NAV License File
File extension FLG	IsoPuzzle Flag File
File extension FLH	FLIC Animation File
File extension FLI	FLIC Animation
File extension FLIPCHART	ActivInspire Flipchart File
File extension FLK	Folder Lock File
File extension FLKA	Folder Lock Portable Locker File
File extension FLKB	Folder Lock Basic Locker File
File extension FLL	Micrografx Designer image fill pattern
File extension FLO	iGrafx FlowCharter File
File extension FLOW	Expression SketchFlow Data File
File extension FLP	Floppy disk image
File extension FLR	Netscape Live3D file
File extension FLS	Adobe Flash Lite sound bundle file
File extension FLST	Adobe InDesign Flattener Presets File
File extension FLT	OpenFlight Scene Description File
File extension FLV	Flash Video File
File extension FLWA	Folder Lock Wallet File
File extension FLX	FelixCAD Drawing
File extension FM	FrameMaker Document
File extension FM3	Lotus 1-2-3 Spreadsheet Format File
File extension FM5	FileMaker 5 Database
File extension FME	FME Mapping File
File extension FMELIC	FME License File
File extension FMI	FME Include File
File extension FML	WWE RAW Character File
File extension FMOD	Adobe Illustrator Flattening Module
File extension FMP	AutoCAD Font Map File
File extension FMP12	FileMaker Pro 12 Database
File extension FMPLUGIN	FileMaker Plug-in
File extension FMPSL	FileMaker Pro 12 Snapshot Link
File extension FMT	Database format file
File extension FMV	Bink Tools Full Motion Video file
File extension FMW	FME Workbench File
File extension FMX	FileMaker Plug-in
File extension FMZ	form-Z project file
File extension FNBK	Food Network Recipe Manager Data File
File extension FNC	QuickCAM 3D CNC File
File extension FND	Windows Saved Search
File extension FNLF	Novation Automap license file
File extension FNRECIPES	Food Network Recipe File
File extension FNT	Windows Font File
File extension FNTA	Aleph One Font File
File extension FO	XSL-FO Form
File extension FOB	Dynamics NAV Object Container File
File extension FODP	OpenDocument Flat XML Presentation
File extension FODS	OpenDocument Flat XML Spreadsheet
File extension FODT	OpenDocument Flat XML Document
File extension FOL	PFS First Choice Database File
File extension FOLX	Folx Download File
File extension FOMOD	Fallout Mod Archive
File extension FON	Microsoft Windows bitmap font file
File extension FOP	InfoZoom Protected Data File
File extension FOR	Fortran 77 Source File
File extension FOS	Fallout 3 Saved Game
File extension FOT	Font Resource File
File extension FOTA	Firmware Over-the-Air File
File extension FOX	FoxBase FoxPro executable file
File extension FP	Fragment Program File
File extension FP3	User specific settings file
File extension FP4	FileMaker Pro 4 Database
File extension FP5	FileMaker Pro 5 Database
File extension FP7	FileMaker Pro 7+ Database
File extension FPA	Front Panel Encrypted Order File
File extension FPBF	Mac OS X Burn Folder
File extension FPD	Front Panel Designer Project
File extension FPE	FPS Creator Entity File
File extension FPENC	FileProtect Encrypted File
File extension FPF	IKEA Home Planner File
File extension FPFV	File Protected From Virus
File extension FPG	DIV Games Studio Multi Map image format
File extension FPI	FPS Creator Intelligence Script
File extension FPID	FPS Creator AI Wizard Data File
File extension FPJ	FARSITE project file
File extension FPK	Civilization 4 Data File
File extension FPM	FPS Creator Map File
File extension FPMB	FPS Creator Mab Buffer File
File extension FPMO	FPS Creator Map Overlay File
File extension FPOP	Spider-Man: Shattered Dimensions Saved Game
File extension FPOS	Photo Pos Pro Image
File extension FPP	Fortran Source Code
File extension FPS	FPS Creator Segment File
File extension FPSL	FileMaker Pro Snapshot Link
File extension FPSX	Nokia Firmware Format File
File extension FPT	FileMaker Pro Database Memo File
File extension FPX	FlashPix Bitmap Image File
File extension FQC	FAQ Creator File
File extension FR3	FastReport Form File
File extension FRAMES	xScope Frames File
File extension FRAMEWORK	Mac OS X Application Framework
File extension FRC	FS Recorder File
File extension FREECELLSAVE-MS	FreeCells saved game file
File extension FRF	Free Report Form File
File extension FRG	dBASE IV uncompiled report file
File extension FRJ	FreeForm-J Project File
File extension FRK	Macintosh Resource or Data Fork
File extension FRL	Electronic Form Loader File
File extension FRM	MySQL Database Format File
File extension FRO	dBASE IV Compiled Report
File extension FRR	Mandelbrot Explorer Fractal Region Settings File
File extension FRS	Corel WordPerfect screen font resource file
File extension FRT	FoxPro Report Memo
File extension FRX	Visual Basic Binary Form File
File extension FRY	Fryrender Scene File
File extension FRZ	Snes9x Saved State
File extension FS	Visual F# Source File
File extension FS2	FreeSpace 2 Saved Mission File
File extension FSB	FMOD Sample Bank File
File extension FSC	FruityLoops score file
File extension FSG	IBM Voice Type languages map file
File extension FSH	Fragment Shader File
File extension FSI	Visual F# Signature File
File extension FSIF	MyLabel Designer Deluxe Data File
File extension FSL	Corel Paradox compiled form file
File extension FSM	Farandole Composer WaveSample File
File extension FSPROJ	Visual F# Project File
File extension FSQ	CryENGINE Facial Editor Sequence File
File extension FSS	Micrografx Picture Publisher 8 register file
File extension FSSAVE	Flight Simulator Save File
File extension FSSCRIPT	Visual F# Script
File extension FST	FL Studio file
File extension FSX	Visual F# Script File
File extension FT	Lotus Notes full test index
File extension FT10	FreeHand 10 Drawing Template
File extension FT11	FreeHand 11 Drawing Template
File extension FT7	FreeHand 7 Drawing Template
File extension FT8	FreeHand 8 Template
File extension FT9	FreeHand 9 Drawing Template
File extension FTC	FluxTime Clip File
File extension FTG	Full Text Group
File extension FTH	FileMaker Theme File
File extension FTIL	e-Hastakshar Contract Note
File extension FTL	FreeMarker Template File
File extension FTM	Micrografx font file
File extension FTN	Fortran Source Code File
File extension FTPLOC	FTP Location
File extension FTPQUOTA	Ftpquota File
File extension FTS	Flexible Image Transport System file
File extension FTW	Family Tree Maker File
File extension FUL	Microsoft Backup File List
File extension FW	Firmware Update File
File extension FWDN	fWriter Document
File extension FWP	Microsoft Expression Web Package
File extension FWT	FacetWin Configuration File
File extension FX	Direct3D Effects File
File extension FXA	OC3 Entertainment FaceFX Actor File
File extension FXB	VST Audio Plug-in
File extension FXC	FilePackager Configuration
File extension FXCPROJ	FX Composer Project File
File extension FXF	BigFix Action File
File extension FXG	Flash XML Graphics File
File extension FXL	FaceFX Language File
File extension FXM	MessiahStudio Motion File
File extension FXP	Visual FoxPro compiled database file
File extension FXPL	Adobe Flash FXP Library
File extension FXS	WinFax transmit format graphics file
File extension FXT	Finale plug-in file
File extension FZ	Fritzing Project File
File extension FZA	Form•Z Autosave File
File extension FZB	Casio FZ-1 Bank dump
File extension FZF	Casio FZ-1 Full Dump
File extension FZIP	Foxit Reader Add-on
File extension FZP	Fritzing Part File
File extension FZV	Casio FZ-1 Voice Dump
File extension FZZ	Fritzing Shareable Project File