B File Extensions

File types with extensions that start with the letter B.

Extension	File Type	File Description
.b	Developer	BASIC Source File
.b2a	Encoded	Btoa Encoded File
.b5i	Disk	BlindWrite 5 Disk Image
.b5t	Disk	BlindWrite 5 Disc Track Information File
.b64	Compressed	Base64 MIME-Encoded File
.b6i	Disk	BlindWrite 6 Disc Image
.b6t	Disk	BlindWrite 6 Track Information File
.ba	Compressed	Scifer External Header Archive
.bac	Backup	Backup File
.backupdb	Backup	Time Machine Backup Folder
.bad	Text	Exchange Badmail File
.bafl	Data	BurnAware File List
.bak	Backup	Backup File
.bak	Backup	Firefox Bookmarks Backup
.band	Audio	GarageBand Project File
.bap	Audio	Blaze Audio Wave Information File
.bar	Game	Age of Empires III Data File
.bar	Game	Age of Mythology Data File
.bas	Developer	BASIC Source Code File
.bat	Executable	DOS Batch File
.bau	Settings	OpenOffice.org AutoText File
.bav	Plugin	AVG Anti-Virus The Bat! Plugin File
.bb	Developer	Blitz Source Code File
.bbc	Developer	BBC BASIC Data File
.bbs	Text	Bulletin Board System Text
.bc	Misc	BitComet Partially Downloaded File
.bc!	Misc	BitComet Incomplete File
.bcf	Page Layout	Business Card Designer Pro File
.bci	Data	Belarc Advisor Report File
.bck	Backup	VMX Backup File
.bckp	Backup	Ad-Aware Quarantined File
.bcm	Backup	Microsoft Works Communications Script Backup
.bcm	Data	Business Contact Manager File
.bcmx	Settings	Business Contact Manager Customization
.bcp	Settings	BlackMagic Custom Palette
.bcp	Page Layout	Business Card Designer Plus File
.bcp	Developer	Borland C++ Makefile
.bdb	Backup	Microsoft Works Database Backup File
.bdd	Audio	CARA Sound Radiation Data File
.bdf	Data	Binary Data File
.bdf	Disk	MIDAS BDF Disk Image File
.bdf	Font	Glyph Bitmap Distribution Format
.bdic	Data	Chrome Dictionary File
.bdmv	Video	Blu-ray Disc Movie Information File
.bdp	Text	Exchange Diagnostic Message
.bdr	Text	Exchange Non-Delivery Report Body File
.bdr	Misc	Publisher Borders File
.bean	Text	Bean Rich Text Document
.bet	Developer	BETA Source File
.bfa	Encoded	Blowfish Encrypted File
.bfc	Misc	Windows Briefcase File
.bfx	Data	Bitware Fax Document
.bgi	Settings	BgInfo Configuration File
.bgl	Data	Babylon Glossary File
.bgt	Data	Graphics Accounts Data File
.bh	Compressed	BlakHole Archive
.bhx	Encoded	BinHex Encoded File
.bib	Text	BibTeX Bibliography Database
.bib	Text	Bibliography Document
.bic	Game	Civilization 3 Scenario
.bif	Disk	Boot Information File
.big	Game	Electronic Arts Game Data File
.bik	Video	BINK Video File
.bik	Game	Video Game Movie File
.bin	Game	Sega Genesis Game ROM
.bin	Game	Nintendo DS Binary File
.bin	Disk	CDRWin CD Image
.bin	Executable	Unix Executable File
.bin	Video	Binary Video File
.bin	Encoded	Macbinary Encoded File
.bin	Data	Generic Binary File
.bio	System	BIOS File
.bip	3D Image	Character Studio Biped File
.biq	Game	Civilization 3 Scenario
.bix	Video	Kodicom Video File
.bix	Game	Civilization 3 Scenario
.biz	Page Layout	Broderbund Business Card File
.bjo	Data	TablEdit Tablature File
.bk	Data	FrameMaker Book File
.bkc	Backup	Backup4all Backup Catalog
.bkf	Backup	Windows Backup Utility File
.bkk	Data	BookBuddi eBook File
.bkp	Backup	Backup File
.bks	Backup	Microsoft Works Spreadsheet Backup File
.blb	Data	Blob Data File
.bld	Data	Envisioneer Building Project File
.blend	3D Image	Blender 3D Data File
.blg	Data	Windows Binary Performance Log File
.blkrt	Raster Image	Block Artist Image File
.blob	Settings	Valve Steam Archive
.blp	Game	Blizzard Texture File
.bls	Game	Blockland Saved Game File
.blt	Settings	AIM Buddy List
.blu	Plugin	FileMaker Pro Runtime Extension
.blz	Image	Compressed Bitmap Graphic
.bmc	Image	Bitmap Cache File
.bmc	Image	Embroidery Image File
.bmd	Game	GameCube 3D Model File
.bme	Game	BeatMania 7-Key Song File
.bmf	Raster Image	Binary Material File
.bmf	3D Image	FloorPlan File
.bmk	System	Help Bookmarks
.bml	Web	Bean Markup Language File
.bmp	Raster Image	Bitmap Image File
.bms	Game	BeatMania Song File
.bna	Text	Barna Word Processor Document
.bnd	Misc	DB2 CLI Bind File
.bnk	Game	Test Drive Unlimited Data Package
.boc	Text	EasyWord Big Document
.bok	Web	ProStores Dynamic Web Page
.bok	Data	TestGen Testbank File
.bom	System	Mac OS X Bill of Materials File
.boo	Compressed	Booasm Compressed Archive
.boot	Settings	InstallShield Boot File
.bootskin	Misc	Stardock Bootskin File
.box	Data	E-mail Mailbox
.box	Video	Kodicom Video
.box	Audio	CARA Loudspeaker Design File
.bp2	Misc	AutoCAD Batch Plot File
.bp3	Misc	AutoCAD Batch Plot File
.bpa	Backup	StorageSync Backup Archive
.bpb	Backup	PowerDesigner Business Process Backup File
.bpg	Developer	Borland Project Group
.bpl	Misc	AutoCAD Batch Plot File
.bpl	Developer	Borland Package Library
.bpm	Backup	PowerDesigner Business Process Model
.bps	Backup	Works Document Backup
.br3	3D Image	Bryce 3 Scene File
.br4	3D Image	Bryce 4 Scene File
.br5	3D Image	Bryce 3D Scene File
.brd	Data	EAGLE Circuit Board File
.bro	3D Image	Broadleaf Tree Model
.bro	Page Layout	CreataCard Brochure Project
.brw	Data	Calyx Point Borrower File
.bs2	Developer	BASIC Stamp 2 Code File
.bs4	Video	Mikogo Session Video Recording
.bsa	Game	Bethesda Softworks Archive
.bsb	Game	BioShock Saved Game File
.bsf	Video	Blu-ray AVC Video File
.bsp	Game	Valve Game Map File
.bst	Misc	BibTeX Style Document
.btf	Data	NationsBank Check Images
.btif	Data	NationsBank Check Image File
.btm	Data	BizTalk Map File
.btoa	Encoded	Binary-to-ASCII Encoded File
.btr	Data	Btrieve Database File
.btw	Page Layout	BarTender Label
.buf	Misc	Buffer File
.bun	Audio	Cakewalk Bundle File
.bundle	Plugin	Mac OS X Application Plug-in
.bup	Backup	DVD IFO Backup File
.bup	Backup	Backup File
.bvh	3D Image	Biovision Hierarchy Animation File
.bwa	Disk	BlindWrite Disk Information File
.bwf	Audio	Broadcast Wave File
.bwi	Disk	BlindWrite CD/DVD Disc Image
.bws	Disk	BlindWrite Sub Code File
.bwt	Disk	BlindWrite 4 Disk Image
.bxx	Settings	BS Contact Parameter File
.byu	Video	Brigham Young University Movie
.bz	Compressed	Bzip Compressed File
.bz2	Compressed	Bzip2 Compressed File
.bzip	Compressed	Bzip Compressed Archive
.bzip2	Compressed	Bzip2 Compressed Archive
.bzw	Game	BZFlag World File