List Of All Extensions And Filetypes - B

This is an easy approach from me to give and describe each and every filetype and extension as much as possible.
here is the list for the information about various filetypes and extensions starting from alphabet B

Extension	Information
B	Limbo Implementation File
B	BASIC Language Source
B	Befunge Program
B	Brainf*ck Program
B	Grand Theft Auto III Save File (+ Other Rockstart Games) (Rockstar Games)
B	Modula-3 Base Program
B	Applause Batch List
B	IRIS Editor Shortened Format File (eurobraille)
B	Molconn-Z Format File
b	LILO Boot Loader Image
B	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
B!K	Flight Simulator Scenery File (Microsoft Corporation)
B&W	1st Reader Mono Binary Screen Image
B&W	Atari Black and White Graphics (Atari)
B&W	Image Lab
B02	ADP Payroll
B1	21st Century Mahjong
B1	Progress Database File (Progress Software Corporation)
B16	PCO Graphic
B1J	BookJones
B1N	1st Reader Binary Screen Image
B1S	BookSmith
B2	Progress Database File (Progress Software Corporation)
B2D	Brutus2D Source Code File (Pewter Software)
B2Z	B2Z dVS Model/Object
B30	Ventura Publisher Printer Font
B32	MS-DOS Bcc file
B36	PDP-10 BLISS-36 Compiler Source
B3D	BDE Multipath Movie Digital Viewer
B3D	Blitz3D/Max/Plus Texture or Mesh File (Blitz Research Ltd.)
B3D	Boso View Express Structure Mesh Diagram (Mackoy)
B3D	3D Builder
B4	Helix Nuts and Bolts File
B4S	Winamp 3+ Playlist
B4U	docPointer Visual ReadMe File (docPointer)
B5	CEDICT Chinese/English Dictionary (Erik E. Peterson)
B5I	DAEMON Tools
B5I	BlindWrite Ver. 5 Image File (VSO-Software)
B5I	IsoBuster CD/DVD Image File (Container) (Smart Projects)
B5S	Numerical Controlled Machine File
B5T	DAEMON Tools
B5T	BlindWrite Ver. 5 Table of Contents File (VSO-Software)
B64	Base 64 MIME-encoded File
B6I	BlindWrite Ver. 6 Image File (VSO-Software)
B6T	BlindWrite Ver. 6 Table of Contents File (VSO-Software)
B8	PictureMaker Blue Channel Image Data (Cubicomp)
B8	Piclab Raw Graphic File
BA	Scifer Archiver and Compression External Archive Format (Senthil Kumar R)
BA$	MS Compressed BAS Decompress with UNPACK.EXE.
BAB	Babble! Data File (Korenthal Associates, Inc, 230 W 13th St, NYC 10011)
BABAR	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BABER	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BAC	Backup
BACH	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BACHTOLD	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BACK	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BACKGAMON	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BACKGRND	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BACKGROUND	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BACKPACK	Backpack Word List (Mammoet Software)
BACKUP	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BACKUP	pgAdmin Database Backup (pgAdmin Project)
BACKUP	ISAPI Loader Backup of Current ISAPI Application (EGGcentric)
BACKUP	Ad-Aware Reference File (Lavasoft)
BACLOOP7	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BAD	Rime Mailer Address File
BAD	Brutus Application Definition File (HooBie Inc.)
BAD	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BAD	Oracle BAD File
BADONGO	BaDonGo File Information (BaDonGo.com)
BAF	Infinity Game Engine Script (BioWare Corp.)
BAG	AOL Instant Messenger (AIM) Buddy List (America Online, Inc.)
BAG	Bag Archive File
BAG	Emperor: Battle for Dune Archive
BAG	PMMail 2000 Mail Index File (Blueprint Software Works)
BAG	AOL 6 Organizer (America Online, Inc.)
BAG	OS/2 Netfinity Manager Sysinfo File
BAG	PMMail/2 Mail Index File (V.O.I.C.E. (Virtual OS/2 International Consumer Education))
BAG	NoX
BAH	Infinity Game Engine (BioWare Corp.)
BAI	BUILD2WIN Add-in (BID2WIN Software Inc.)
BAK	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BAK	Backup
BAL	BAL Borland Programming Language Source
BAL	Ballade Music Score
BALANCE	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BALL	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BALL2	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BAM	OHRRPGCE Music File (Hamster Republic)
BAM	Bob's Adlib Music
BAM	Bravo! Archived Media (Thought Studios, Inc.)
BAM	Panda3D Game Engine Compressed Model Folder (Panda3D Development Team)
BAM	Infinity Game Engine Zlib Compressed Animation and Multi-frame Graphics (BioWare Corp.)
BAM	Infinity Game Engine Animation and Multi-frame Graphics (BioWare Corp.)
BAN	Creatacard Banner Project (Broderbund)
BAN	Sierra Print Artist Banner
BAN	MegaHAL Non-Keyword List (Ai Research)
BAND	GarageBand Song (Apple Inc.)
BANGER	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BANJ	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BANK	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BANKSW	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BANNER	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BAR	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BAR	Age of Mythology
BAR	dBASE Application Generator Horizontal Menu Object
BAS	BASIC Source Code
BAS	HBasic Source Code
BAS	QuickBASIC Extended v7.1 Source
BAS	CHDK UBASIC Script
BAS	VBDOS Pro 1.0 Source
BAS	e.Report Designer Actuate Basic Source (Actuate Corporation)
BAS2	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BAS7	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BASE	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
bash	Bash Shell Script
BASIN	Hydrologic Modeling System (HEC-HMS) Basin Model Settings (U.S. Army Corps of Engineers)
BASKETBALL	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BASS	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BASS1	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BASS2	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BASSD	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BASSDRU2	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BASSG	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BAT	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BAT	Batch Processing (Microsoft Corporation)
BATCH	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BATH	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BAU	OpenOffice.org 1.1 Configuration Files (OpenOffice.org)
BAV	AVG The Bat! Add-in (AVG Technologies)
BAV	The Bat! E-mail Client Anti-Virus File (RITLABS)
BAVANT	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BAW	BrainLED AlfaWave Session (BrainLED)
BAY	Kodak/Roper Bayer Picture Sequence
bb	gcc -ftest-coverage Basic Block List Data
BB	Starfleet Battles DOS Game
BB	BrowserBob Project File (BrowserBob weblications)
BB	Blitz3D/Max/Plus Source Code (Blitz Research Ltd.)
BB	Art-lantis Billboard Management File (ABVENT)
BB	Papyrus Database Backup
BB2	XBBS-OS/2, XGROUP, AV and ZTree Archiver Control File
BBC	Babya Photo Workshop Color Collection (Babya Software Group)
BBC	BBC BASIC for Windows File (R. T. Russell)
BBE	Brainbloom Document Exchange File (Gael Limited)
BBF	ScriptBasic Binary File (ScriptBasic Project Team)
BBF	FRAMES Body Burden Concentration File
BBG	CyberSports for Basketball Game File (CyberSports, Inc.)
bbg	gcc -ftest-coverage Basic Block List Data
BBK	WWTBAM Game Component
bbl	TeX/BibTeX Bibliographic Reference File
BBM	Deluxe Paint Image File
BBM	BDBZM (Project BDBZM)
BBMA	Bonzibuddy
BBNNG	BBN BitGraph Terminal Display Pixel Data (DPD) Sequence Bitmap
BBP	BitBeamer Split File
BBP	Bezier Surface File
BBQ	BitBeamer Transfer Queue File
BBRKPUZZLE	BrainsBreaker Puzzle (Juan Trujillo)
BBRKSAVE	BrainsBreaker Started Puzzle Status (Juan Trujillo)
BBS	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BBS	FTN Software Hudson-style Messagebase
BBS	Bulletin Board System Text
BBT	CyberSports for Basketball Team File (CyberSports, Inc.)
BBV	PPLive Cache? (PPLive Inc.)
BBX	BrainBox Neural Net (Neil Fraser)
BBZ	Line Rider 2 Unbound DRMed Game Executable (inXile entertainment)
BBZ	Bitblaze Audio File
BC	BitComet Incomplete Download (BitComet.com)
BC	Big Crunch Compressed File (KaBoom)
BC	Low Level Virtual Machine (LLVM) Bytecode (University of Illinois at Urbana-Champaign Computer Science Department)
BC	Mikmak 203 file
BC	BCwin Project Data (Procedimientos-Uno, S.L.)
BC	Sierra Print Artist Business Card
BC	Low Level Virtual Machine (LLVM) Bytecode (Compressed) (University of Illinois at Urbana-Champaign Computer Science Department)
BC!	BitComet Incomplete Download (BitComet.com)
BC3	BCC 3 Make File
BC3	Fiebdc-3 Format File
BCA	Railroad Tycoon 3 Building (PopTop Software Inc.)
BCA	Allplan 2005 Backup Catalog File (Nemetschek A.G.)
BCB3	BC3 Make File
BCC	Calendar Creator File (Riverdeep Interactive Learning Limited (Houghton Mifflin Harcourt Learning Technology))
BCC	C++ File/Makefile (Borland Software Corporation)
BCD	Turbo Pascal DOS File (Borland Software Corporation)
BCD	ReaderRom Digital Library Book File (Inc. Reader Rom)
BCD	OfficePrinter Document (Moss Bay Software)
BCD	Binary Cartographic Data File
BCD	Cosmi Business Card Maker
BCF	Business Card Designer Pro Business Card Design (Belltech Systems, LLC)
BCF	ConfigSafe Snapshot Index
BCF	The Sims 3D Body Mesh File (Electronic Arts (Maxis))
BCF	MyLabel Designer Deluxe Label File (Avanquest Publishing USA, Inc.)
BCH	dBASE Application Generator Batch Process Object
BCH	Datalex Entry Point 90 Data File (Phoenix Software)
BCI	Advisor Computer Profile Report (Belarc)
BCK	Backup
BCK	VMS/VAX BaCKup
BCK	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BCKP	Ad-Aware Quarantine File (Lavasoft)
BCL	PDP-10 BCPL Compiler Source
BCM	Works Communications File (Microsoft Corporation)
BCM	Compaq Easy Access Keyboard Driver
BCM	PDP-10 Binary Compare - FILCOM Output Showing Differences by Octal Words
BCMR	BC Framer (Boise Cascade)
BCN	Business Card Pro Design
BCO	Bitstream Fontware
BCO	MicroSim PCBoard Backward Engineering Change Order
BCP	C++ Makefile (Borland Software Corporation)
BCP	Business Card Designer Plus Design File (CAM Development)
BCP	Bambalam PHP EXE Compiler/Embedder Project File (Bambalam)
BCR	map&guide Station List (PTV AG)
BCS	Brian's Compression Shell (BCS) Image Animation/Video Shell
BCS	Yamaha Basic Style (Yamaha Corporation of America)
BCS	Windows95 Browse Information
BCS	Infinity Game Engine Compiled Script (BioWare Corp.)
BCT	Clarion for Windows Backup Dictionary (SoftVelocity)
BCT	Business Card Designer Template
BCW	C++ Version 4.5 Environment Settings (Borland Software Corporation)
BCX	Beam Report Standard Definition File (SYSTEAM)
BCZ	Siemens PLM Software BriefCaseZipfile (Siemens AG)
BD	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BD	Solaris Browser Data File (Sun Microsystems, Inc.)
BD1	X Operations Map Block Locations (Team Mitei)
BD4	West Point Bridge Designer Ver. 4 Bridge Design
BDB	Works Database File (Microsoft Corporation)
BDB	CHASE Evaluation and Audit System Executable (Health And Safety Technology And Management Ltd.)
BDB	Blaise Database (Statistics Netherlands)
BDBZM	BDBZM (Project BDBZM)
BDC	Babylon Dictionary and Translation software (Babylon)
BDC	West Point Bridge Designer
BDD	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BDE	Pro/ENGINEER Temporary File (PTC)
BDE	Borland Database Engine (Borland Software Corporation)
BDF	Quartus II Block Design File (Altera Corporation)
BDF	Backup To CD-RW Backup Definition File
BDF	RD Birthday Reminder Data File (Christian Weiske)
BDF	E-Mail Detective Binary Data Fragment (Hot Pepper Technology, Inc.)
BDF	Egret Data File
bdf	UNIX Font File
BDF	Bupdate Binary Update File
BDF	NEi Nastran Bulk Data File (Noran Engineering, Inc.)
BDF	Glyph Bitmap Distribution Format (Adobe Systems Incorporated)
BDF	NuGraf Scene file
BDF	TXRDWIN X-ray Diffraction Pattern (Omni Scientific Instruments, Inc.)
BDF	Brother BES-100E Embroidery Software File (Brother Industries, Ltd.)
BDF	West Point Bridge Designer
BDF	X11 Bitmap Distribution Format
BDG	BudgetExpress Data File (De Marque Inc.)
BDG	Badge Designer 2000 Photo ID
BDI	Pro/ENGINEER Temporary File (PTC)
BDIC	Chrome Dictionary File (Google)
BDK	OS/2 Saved SKF Format File (IBM)
BDL	Gamecube 3D Model File
BDL	OneSpace Designer Bundle (CoCreate)
BDM	Pro/ENGINEER Temporary File (PTC)
BDM	Blaise File (Statistics Netherlands)
BDMV	Blu-ray Information File (Blu-ray Disc Association)
BDR	Publisher Border (Microsoft Corporation)
BDRUM1	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BDSPROJ	Developer Studio Project File (Borland Software Corporation)
BDT	TAC Browser Script (Swoot)
BDT	Lingvo Dictionary
BDW	Budget For Windows Data File (Snowmint Creative Solutions LLC)
BDX	BarBack Drink Exchange File
BDX	JavaBib Index File
BDX	FUSE Science Pipeline Bad Data File
BE	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BEA	Beamer Song File (The Beamer Project)
BEACHBALL	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BEACON	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BEAM	Erlang Compiled Erlang Code (Telefonaktiebolaget LM Ericsson)
BEANS	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BEAT	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BEATWAVE	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BEC	Break Even Calculator
BED	InfoSnorkel Blue Elephant Definition
BED	RegionMiner Genomic Regions File (Genomatix Software GmbH)
BED	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BEE	The Bee Archiver Compressed Archive
BEE	Beeline-AIR System File
BEE	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BEEP	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BEF	Boomi Integration Platform Setup Information (Boomi, Inc.)
BEGIN	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BEGINNERS	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BEGINNING	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BEHEADER	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BEHINDTHEWH	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BEJEWELED2DELUXESAVEDGAME	Bejeweled Ver 2 Saved Game File (PopCap Games, Inc.)
BEL	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BEL	Belon Compressed Archive
BEL	HPXView Binary Event Log Archive (Haliplex Communication Systems)
BEL	Beamer Layout File (The Beamer Project)
BELL	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BELL2	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BELLS	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BELOW	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BEN	Syssoft Sandra File
BEP	Beamer Playlist (The Beamer Project)
BER	German Bericht Report File
BES	MOBY Database (Bitter End Systems)
BETWEEN	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BEX	Pretty Good Privacy (PGP) Binary Extracted Public Key (PGP Corporation)
BEX	BOOM Extensions To Dehacked
BEX	British National Bibliography File
BEX	Kashmir 3D Transparent Color Definition
BEXPK	Pretty Good Privacy (PGP) Binary Extracted Public Key (PGP Corporation)
BEYOND	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BEYOND2000	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BEZ	Bezier Surface File
BEZ	Bitstream Fontware
BF	Beyond Good & Evil Game Archive (Ubisoft Entertainment)
BF	Befunge Program
BF	Brainf*ck Program
BF	Cryo Interactive Game Data
BF2	Bidfax 2000 SE Database (Management Computer Controls, Inc.)
BF2	Bradford 2 Font
BFA	Blowfish-encrypted File
BFB	Ralcgm File
BFC	Windows 95 Briefcase File
BFE	bcrypt Blowfish Encrypted File (Johnny Shelley)
BFF	WorldToolKit Neutral File Format
BFF	AIX Backup File Format
BFFM	B17 Flying Fortress Game File
BFI	Blaise Index (Statistics Netherlands)
BFL	Colin McRae Rally 2 Data File
BFL	yBook eBook (Spacejock Software)
BFL	Big Flexible Line Interpretation (C64) Bitmap
BFLI	Big Flexible Line Interpretation (C64) Bitmap
BFM	UNIX Font Metrics File
BFN	Brother Embroidery Software Font (Brother Industries, Ltd.)
BFR	NI Observer Capture File
BFS	Tivoli Storage Manager File (IBM)
BFX	BitFax Document (Bitware)
BG	Lotus Agenda File
BG	Backgammon for Windows Game File (Microsoft Corporation)
BG	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BGA	OS/2 Bitmap Graphic Array (IBM)
BGB	Chat Background Graphic (Microsoft Corporation)
BGCF	Greeting Card Designer Greeting Card Design (Belltech Systems, LLC)
BGDB	Global Virtual Accademy E-Learning File
BGI	BGInfo Configuration File (Bryce Cogswell)
BGI	Borland Graphic Interface (Borland Software Corporation)
BGL	Babylon Glossary File (Babylon.com Ltd.)
BGL	Flight Simulator Scenery File (Microsoft Corporation)
BGM	Jane's Combat Simulations F-15
BGM	Basic4GL 3D Object (BasicGl - Tom Mulgrew)
BGN	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BGO	BigOven Recipe Card (sdmventures)
BGT	Quicken 2002 Internet Common File (Intuit Inc.)
BGT	Graphic Accounts Budget Data (FKJ Software)
BGV	BonanzaGraf
BGW	Final Fantasy XI Music (Square Enix Co., LtdSquare Enix Co., Ltd)
BGX	BC45 BGI File
BH	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BH	BlackHole Archive Format File
BH3	Rise of Nations Unit Graphic (Microsoft Corporation)
BHA	Rise of Nations Unit Graphic (Microsoft Corporation)
BHF	pcAnywhere Host File (Symantec Corporation)
BHI	Partminer Lib file
BHL	Partminer Lib file
BHO	Behold Settings File (Louis Kessler)
BHS	Rise of Nations Script (Microsoft Corporation)
BHTML	BabuHTML Embedded Software File
BHX	BinHex Compressed File ASCII Archive
BI	Quick Basic or Visual Basic for DOS Include File (Microsoft Corporation)
BI	Progress Database Before Image File (Progress Software Corporation)
BI	Binary File
BI$	MS Compressed BI Decompress with UNPACK.EXE.
BI7	Rukus 110 File
BI?	LoseThos Binary Executable File (Terry A. Davis)
BIB	Bibliography
BIB	JavaBib BibTeX File
BIB	Papyrus Database
BIB	TeX/BibTeX Literature Database
BIBTEX	BibTeX Document
BIC	Civilization III Scenario (Firaxis Games, Inc.)
BIC	Neverwinter Nights Character Sheet (Bioware)
BID	BidMaker 2002
BIE	JBIG File
BIF	Image Capture Board Binary Black & White Image
BIF	TomTom General Info (TomTom International BV)
BIF	UltraISO Boot Information File (EZB Systems, Inc.)
BIF	byLight Graphic
BIF	BioWare Infinity Engine Archive of Resources (BioWare Corp.)
BIF	MagicISO Boot Information File (MagicISO Inc.)
BIF	BioWare Aurora Engine Resource File (BioWare Corp.)
BIF	WordPerfect Binary Information File (Corel Corporation)
BIF	GroupWise Initialization File (Novell, Inc.)
BIF	Baldur's Gate Archive
BIF	Planescape: Torment Archive
BIF	Binary Information File
BIFF	BioWare Infinity Engine Archive of Resources (BioWare Corp.)
BIFF	XLITE 3D file
BIG	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BIG	Home World 2 SGA Archive (Relic Entertainment Inc.)
BIG	Electronic Arts Game MOD File (Electronic Arts, Inc.)
BIG	Chinese Text
BIG	Homeworld Compressed Data Archive (Sierra Entertainment, Inc.)
BIG	Cartes Michelin
BIG	Fifa World Cup Game File
BIG5	Chinese Text
BIGBLUEFONT	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BIK	Bink and Smacker Game Video File Codec (RAD Game Tools, Inc.)
BIK	BioCharter Profile Backup
BIL	ArcView Image File (ESRI)
BILL	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BIM	Envisioneer Self-contained Catalog Item (Cadsoft Corporation)
BIMD	Blue Ink Meta-Data (Automated Architecture, Inc.)
BIN	Micrografx Designer 7 Project Image
BIN	MacBinary Archive Format Often used on Macintosh.
BIN	Perceptron Scanner File
BIN	TenCORE Plug-in Helper Application (TenCORE)
BIN	Binary File
BIN	MTK Chipset GPS Tracklog
BIN	AVG Update File (AVG Technologies)
BIN	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BIN	CDRWin CD Image File
BIN	Linux Executable
BIN	Thomson Speedtouch Series WLAN Router Firmware (Thomson Telecom)
BIN	SGI Powerflip
BINS3	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BINS4	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BIO	BioCharter Profile
BIO	BioArc Compressed Archive
BIO	OS/2 Bios File
BIO	Infinity Game Engine Character Biography (BioWare Corp.)
BIOT	BiotSavart Magnetic Design File (Ripplon Software Inc.)
BIP	Blue Ink Project (Automated Architecture, Inc.)
BIP	ArcView Image File (ESRI)
BIP	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BIRD	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BIT	Xilinx Integrated Software Environment Bitstream File (Xilinx, Inc.)
BIT	X11 Bitmap Image
BIT	Worms World Party Imported Map
BIT	Worms Armageddon Imported Map
BIT	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BITMAP	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BIU	BidMaker 2002 Update
BIX	BIX Archiver Compressed Archive
BIX	Digital Video Witness CCTV Data File (Kodicom Co., Ltd)
BIX	Index to a .BIB BibTeX Bibliography Database
BIX	Civilization III Scenario (Firaxis Games, Inc.)
BIZ	Creatacard Business Card Project (Broderbund)
BIZ	BIZ dVS Model/Object
BIZ	Print Shop Business Card File (Broderbund)
BIZ	PrintMaster Gold Document (Broderbund)
BIZ	ShowBiz Project File (ArcSoft, Inc.)
BIZDESIGN	BusinessReport Design (Actuate Corporation)
BIZDOCUMENT	BusinessReport Document (Actuate Corporation)
BIZZARELOVETRIANGLE	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BJD	NDDigital Print Bureau (NDDigital S/A)
BJF	NTI Backup NOW! File
BJG	DESQview (Symantec Corporation)
BJK	Scanner Recognita file
BJK	Blaise File (Statistics Netherlands)
BJL	BJL Business Systems Active Translation Document (The BJL Group)
BJO	Tabrite Banjo Tablature (Janet Davis Music)
BK	Backup
BK	FrameMaker BookFile Document (Adobe Systems Incorporated)
BK	JetFax Faxbook File
BK	LinguAssist File
BK	Movie Magic Screenwiter Screenwriter Document Backup (Write Brothers, Inc.)
BK!	Backup
BK$	Backup
BK1	Backup
BK1	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BK1	VirtuaGirl Graphics Container (Totem Entertainment)
BK1	Bach Preludes and Fugues MIDI akmi Source, Book 1
BK2	Bach Preludes and Fugues MIDI akmi Source, Book 2
BK2	Backup
BK2	VirtuaGirl Graphics Container (Totem Entertainment)
BK3	VirtuaGirl Graphics Container (Totem Entertainment)
BK3	Backup
BK4	Backup
BK5	Backup
BK6	Backup
BK7	Backup
BK8	Backup
BK9	Backup
BKC	Backup4all Backup Catalog File (Softland)
BKC	Collectorz.com Book Collector Book Collection Data (Collectorz.com)
BKF	WindowsXP Backup Utility Backup Set (Microsoft Corporation)
BKF	Moto Racer Archive
BKG	Background File
BKG	Samsung Document (Samsung)
BKG	UWXAFS Binary Format Data File
BKGND	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BKI	Backup Index
BKI	IBM BookManager Backup Index
BKI	IBM Softcopy Reader (Bookmanager) Bookshelf (and Book) Index File (IBM)
BKP	Backup
BKR	Bruker Aspect NMR Data File
BKR	ReplaceEm Fileset (Custom Fit Software)
BKS	Works Spreadsheet Backup (Microsoft Corporation)
BKS	Windows 2000 Scheduled Backup Script (Microsoft Corporation)
BKS	BookManager Read Bookshelf (IBM)
BKS	IBM Softcopy Reader Bookmanager Book File (IBM)
BKT	Zortech 3 tools Samples File
BKU	Timeslips Backup (Peachtree Software)
BKW	FontEdit Fontset Mirror Image
BKY	bookkey Bookmark/Keyword Data (Michael Valentiner-Branth)
BL	Binary Linework TIFF Bitmap
BLA	Black Color Separation (Adobe Systems Incorporated)
BLA	Blat E-mail
BLA	Blaise Data Model (Statistics Netherlands)
BLACK	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BLACKMORE	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BLANK	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BLAST	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BLASTER	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BLASTERBALL3SAVEDGAME	BlasterBall Ver. 3 Saved Game (WildTangent, Inc.)
BLB	Blorb Game Resource Package
BLB	ACT! Database File (Best Software CRM Division)
BLB	BlockLand Brick File (BlockLand LLC)
BLB	Blob File
BLB	DreamWorks Resource Archive
BLC	BIACORE Instruments and BIAlite Project (Biacore)
BLD	RealFlight Radio Control Airplane Description (Knife Edge Software)
BLD	VersaPro Block Build Info
BLD	My Personal Programmer Project File (M:Pact Technologies)
BLD	Yoot Tower Saved (Game) Building (Sega)
BLD	MegaPaint
BLD	Developer Studio MAK (Microsoft Corporation)
BLD	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BLD	3D Home Design Suite Model (Cadsoft Corporation)
BLD	ACT! (Best Software CRM Division)
BLD	BASIC Bload Graphics
BLD	Weinberger Picture Sequence
BLD	EnergyPro (EnergySoft, LLC)
BLD	Visual Build Project (Kinook Software, Inc.)
BLD2	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BLDITAL	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BLE	Photoline4 Blends file
BLE	BIAevaluation Ver 2.x Project (Biacore)
BLEND	Blender 3D File
BLEND	Blender Publisher Data File (Stichting Blender Foundation)
BLF	BancTec Scanner Driver (Kofax)
BLF	Rally Online Car Texture File (GameSpy Industries)
BLF	Advanced Computer Architecture Car Simulation
BLF	ObjectStore Distribution File (Franz Inc.)
BLF	Beast 2.02 Trojan File
BLF	BIACORE Instruments and BIAlite Project (Biacore)
BLF	Telerate Workspace File
BLF	DriveBlockEditor Function Block Programming Data (Rockwell Automation)
BLG	Windows Binary Performance Log
BLG	MicroSim PCBoard Backward ECO Log File
BLG	ARCSOLO Backup Log
BLG	BibTeX Log
BLI	Thomson Speedtouch Series WLAN Router Firmware (Thomson Telecom)
BLI	BLINK Archiver Archive (De Trans Software)
BLI	PDP-10 BLISS-10 Compiler Source
BLINK	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BLK	VersaPro Block
BLK	Lightscape Block Library
BLK	ProWORX Nxt Block Data (Schneider Electric)
BLK	Win32Forth Block Data
BLK	Amiga IFF (Amiga)
BLK	Wavefront Image (Alias)
BLK	WordPerfect Temporary File (Corel Corporation)
BLL	VBS/European-A Worm
BLL	INPRISE Format Language Library (Borland Software Corporation)
BLN	Rise of Nations Campaign Media File (Microsoft Corporation)
BLOB	Cosmic Blobs Model (SolidWorks Corporation)
BLOB	Steam Registry (Valve Corporation)
BLOCK	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BLOCKS	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BLOSSOMS	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BLP	Blizzard Game Picture (Blizzard Entertainment)
BLR	BIACORE Instruments and BIAlite Project (Biacore)
BLS	Blockland Saved Game (Step 1: Games LLC)
BLS	BIACORE Instruments and BIAlite Project (Biacore)
BLS	Brush Lettering Saved Brush Lettering Style (EK Success, Ltd., pcCrafter, Inc.)
BLT	CATC Merlin Bluetooth Trace Files (Computer Access Technology Corporation (CATC))
BLT	AOL Instant Messenger (AIM) Saved Buddy List File (America Online, Inc.)
BLT	Wordperfect for DOS (Corel Corporation)
BLU	blue Database (walkingtoyou.com)
BLU	Apple Binary 2 Library Utility Archive
BLU	Blue Compiler Blue Source File (Monash University)
BLUE	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BLUE	EVE Online Texture File (CCP hf)
BLUEBERRY	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BLUEESMERALDA	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BLUEMONDAY	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BLURB	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BLW	ArcView World File For BIL Image (ESRI)
BLY	Fifa World Cup Game Art Loadgame file.
BLZ	Blazon Heraldic Shield
BLZ	Serial Number File
BLZ	Twinkle Bulbs Bulb File
BLZ	Emblaze.Creator File
BLZ	N-Gage Game File (Nokia)
BLZ	Bitmap Graphic
BM	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BM	X Windows System Bitmap
BM$	Modem Bitware Fax disk2 file
BM1	Apogee BioMenace Data
BM2	Subspace/Continuum Graphic
BMA	BMA Archiver Compressed Archive
BMAP	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BMB	SLICS Bounding Box Information
BMB	Pro/ENGINEER Temporary File (PTC)
BMC	IBM Voice Type languages Newuser File
BMC	Embroidery Graphic File
BMD	GameCube 3D Model (Texture + Skeleton) (Nintendo)
BMD	Mu Online Data File (WEBZEN, Inc.)
BME	Beatmania Music Simulator File (Konami Broadcasting)
BMF	Corel Flow Image File (Corel)
BMF	ByteMap Font
BMF	BMF Bitmap
BMF	FloorPlan Project File (IMSI/Design LLC)
BMF	BrainMine Mind Map (Neural Matters Limited)
BMG	Bert's Dinosaurs File
BMHTML	Deluxium Stored Bookmark (Bookmark Hyper Text Markup Language) (ShadowIdeas,co,uk)
BMI	Buzz Instrument
BMI	Blaise Index File (Statistics Netherlands)
BMI	3ds Max Executable (Autodesk, Inc.)
BMI	Blue Martini Import File
BMK	Help Bookmark
BMK	WinDVD Bookmark (Corel Corporation)
BMK	BMC Software Patrol Icon File
BML	Alpha Five Image Library File (Alpha Software, Inc.)
BML	Bean Scripting Framework (BSF) File
BML	BPM Studio Skin Bitmap (ALCATech)
BML	BusinessMAP Map Layer File (ESRI)
BMM	Tacmi Pixia Palette File
BMP	Windows OS/2 Bitmap Graphics
BMP	Award AWBM BIOS Bitmap (Phoenix Technologies LTD)
BMP	Infinity Game Engine Palette Information (BioWare Corp.)
BMP24	Bitmap Graphic
BMPENX	egis Encrypted BMP File (HiTRUST Inc.)
BMS	Beatmania Music Simulator File (Konami Broadcasting)
BMS	BIOWRAP Biometric Authentication of Files (Nation Technologies)
BMS	BeMusic Script
BMS	Backup Magic Backup Set
BMT	Alpha Five Image Library File (Alpha Software, Inc.)
BMT	Ami Pro Button Image (IBM)
BMTP	Bome's Midi Translator Project File (bome.com)
BMU	Infinity Game Engine BioWare Music Unit (BioWare Corp.)
BMW	W32/Liji-A
BMW	Buzz Music File with Waves
BMX	Buzz Music File
BMX	BMXdesign Extended Bitmap Graphic (Container) (HEIDENHAIN)
BMX	Alpha Five Image Library File (Alpha Software, Inc.)
BMX	Siemens Mobile Phone Animation (Siemens)
BMZ	Demon Stalkers: Raid on Doomfane
BMZ	Compressed BMP File
BM_	Mumath 30 File
BM_	WebCD Fread File
BN	AdLib Instrument Bank
BN2	Bojanov Encryptor Encrypted File (Bojanov Software)
BN7	Ox Object-Oriented Matrix Programming Language PcGive 7 Data File
BNC	Bojanov Encryptor Encrypted File (Bojanov Software)
BND	DB2 Bind File
BND	Typequick File
BND	Flight Simulator Panels File (Microsoft Corporation)
BNF	IBM Voice Type Languages Map File
BNG	RANGER.EXE
BNK	Bink Compressed Video/Audio File
BNK	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BNK	AdLib Instrument Bank
BNK	SimCity Game File (Electronic Arts, Inc.)
BNK	ExamView Question Bank (FSCreations, Inc.)
BNL	MicroSim PCBoard Netlist File For The Board Layout
BNR	Banner - Poster Graphic Banner
BNR	Binary News Reader File
BNSKIN	BeatNik Clock Skin (Something Decent)
BNT	Entropia Universe Texture, Sound and String Archive (MindArk PE AB)
BN_	Ntgraph Ze32v215 file
BOA	BOA Constrictor Archiver Compressed Archive
BOARD	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BOB	Bob Raytracer
BOB	BobDown Downloading Program
BOB	TAC Browser URL (Swoot)
BOCHSRC	Bochs Configuration File (The Bochs Project)
BOD	Roland Garros Tennis Terrain File
BOD	Data Designer Ddbac File
BOE	Outlook Express Backup File (Microsoft Corporation)
BOF	IBM Voice Type Language Task Enroll File
BOF	BrowserBob Object File (BrowserBob Weblications)
BOI	Botje Bot-file (TNHteam)
BOK	Drudix Book Designer Book Definition File (iAR GmbH)
BOL	Booasm Compressed Archive Library (Microsoft Corporation)
BOLD	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BOLD6	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BOLF6	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BOM	Softshare Delta Business Object Model
BOM	Pro/ENGINEER Temporary File (PTC)
BOM	OrCAD Schematic Capture Bill of Materials File (Cadence Design Systems, Inc.)
BOM	MicroSim PCBoard Bill of Materials
BOM	Bill of Materials File
BOMBER	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BONES	xfit Ridgeline File
BONGO	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BONK	BONK Lossless/Lossy Audio Compressor
BOO	Boo Class File
BOO	Kermit Protocol Binary Bootstrap File
BOO	IBM BookManager Book
BOO	Image File
BOO	Microsoft Booasm.arc Compressed Archive File
BOOK	ICE Book Reader Book File (ICE Graphics)
BOOK	FrameMaker Book (Adobe Systems Incorporated)
BOOK	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BOOKS	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BOOST	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BOOT	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BOOT	InstallShield (Acresso Software Inc.)
BOOT0	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BOOTSCREEN	BootSkins New Boot Screen (Stardock Corporation)
BOOTSKIN	BootSkin Windows Boot Skin (Stardock Corporation, Inc.)
BOP	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BOR	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BORDERS	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BORED	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BORLAND	C Makefile (Borland Software Corporation)
BOS	Dynamite VSP Building Object Style (3am Solutions (UK) Limited)
BOS	Brotherhood of Steel Compressed File
BOSSFONT	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BOT	Soldat Bot Information File (Michal Marcinkowski)
BOT	LinkBot document
BOT	Robot Arena: Design & Destroy Robot (Gabriel Group, Inc.)
BOT	Frogbot Editor
BOULDER	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BOULESHP	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BOUTON	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BOW	Back Orifice 2K Workspace
BOWL	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BOX	Digital Video Witness CCTV Data File (Kodicom Co., Ltd)
BOX	Calypso Email Mailbox (Rose City Software)
BOX	Notes Mailbox
BOX	VTrain (Vocabulary Trainer) Box File (Paul Raedle)
BOX	ThrottleBox Multimedia Viewer
BOX	Vbox Helper Application File (Aladdin Knowledge Systems)
BOX	Foxmail E-Mail Box
BOX	Systems Management Server (SMS) Temporary Holding Area (Microsoft Corporation)
BOX	MediaShout Presentation Script (MediaComplete)
BOX	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BOX	Lemmings Revolution Archive
BOX3D	Box Shot 3D Project (Applications For Life)
BOXES	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BOXR	Boxerjam Interactive Game System
BOY	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BOZ	BZIP Over ZIP Compressed File Archive
BP	Binary Picture TIFF Bitmap
BP	BankPerfect Accounts File (Fabio Chelly)
BPA	Death Rally Archive File (Remedy Entertainment)
BPC	Business Plan Toolkit Chart
BPC	BuildPro File
BPD	BizInt Smart Charts for Patents Data Transfer Format (BizInt Solutions)
BPD	Data Designer Database Backup File
BPD	catDB Template Property Dictionary
BPD	DTLplot Beadpull Data File
BPD	FARSITE Burn Period File (The Fire Sciences Lab (FiSL))
BPD	Pscript Binary PostScript Printer Description File
BPD	Business Plan Pro Business Plan Data (Palo Alto Software, Inc.)
BPD	PCIScope PCI and ISA PnP Subsystem Information (APSoft)
BPD	B�ro Plus NexT FlashFiler Database File (microtech GmbH)
BPD	Cash Compass Plan (Palo Alto Software, Inc.)
BPDX	Acrobat Batch PDX (Catalog) File (Adobe Systems Incorporated)
BPEL	Fiorano BPEL Project File (Fiorano Software Inc.)
BPF	Cash Compass Table Formatting (Palo Alto Software, Inc.)
BPF	F-Secure Base Policy File (F-Secure)
BPG	Borland Project Group (Borland Software Corporation)
BPI	IBM Voice Type languages Newuser file
BPJ	Bravo! Project (Thought Studios, Inc.)
BPK	C++ Builder Package File (Borland Software Corporation)
BPK	Blaise File (Statistics Netherlands)
BPKEY	Blender Publisher License Key (Stichting Blender Foundation)
BPL	Winamp Ver 3 Playlist File (Nullsoft)
BPL	Delphi Library (Borland Software Corporation)
BPL	AutoCAD R2000 Batch Plot List (Autodesk, Inc.)
BPLIB	BrilliantPhoto Photo Library File (Brilliant Labs, Inc.)
BPM	Brazil r/s Photon Map Storage File (SputterFish, LLC)
BPM	Battle Planner Module (Battle Planner, LLC.)
BPMN	ActiveModeler Avantage Template File (KAISHA-Tec Co. Ltd)
BPP	Taskmaster Batch Pilot Project (Datacap Inc.)
BPP	MUSICMATCH Burner Plus Project
BPP	Clarion for Windows Backup Application (SoftVelocity)
BPR	Reference Count 01 File
BPR	C++ Builder 6 Project (Borland Software Corporation)
BPR	BackupXpressPro Project File
BPS	Business Plan Toolkit
BPS	Works Document (Microsoft Corporation)
BPS	Bulletproof FTP Settings
BPS	XMap Flight Plan or Flight Plan Statistic File (Delorme)
BPT	Corel Bitmap Master File
BPT	Belarc Product Key (Belarc)
BPV	BallPark Business Valuation Valuation Scenario File (BulletProof Business Plans)
BPW	ArcView World File For BIP Or BMP Images (ESRI)
BPW	QuickBooks Business Planner File (Intuit Inc.)
BPX	Lumena BigPix
BPX	BusiPlan File (Manager-Pro)
BPX	Truevision Targa Bitmap
BQW	ArcView World File For BSQ Image (ESRI)
BQY	BrioQuery File (Oracle)
BR	The Playa File
BR	Bridge Script
BR	Omnis7 Data (Omnis Software)
BR1	Wincmd Fle
BR3	Bryce 3D Scene File (DAZ Productions)
BR4	Bryce 4 Scene (DAZ Productions)
BR5	Bryce 5 Scene (DAZ Productions)
BR6	Bryce 6 Scene (DAZ Productions)
BRAIN	Msdev Common Addins File
BRAINCHIME	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BRAS	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BRC	Bryce 2 Scene (DAZ Productions)
BRC	Onset Design Briefcase Briefcase (Onset Design)
BRCC	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BRD	Allegro (Cadence Design Systems)
BRD	Winning Bridge Saved Hand (Gerald Wilson)
BRD	EAGLE Layout Editor Board File (CadSoft Computer GmbH)
BRD	RPG Toolkit Board Design File (Christopher Matthews)
BRD	WinBoard Project (Ivex Design International)
BRD	BizInt Smart Charts for Pharmaceuticals Data Transfer Format (BizInt Solutions)
BRE	Breuckmann Scanner File
BREAK	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BREAST	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BREATH	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BREP	Open CASCADE 3D Model File (Open CASCADE Company)
BREP	Boundary Representation File Format
BRF	Braille ASCII File
BRF	Brief
BRF	Duxbury Braille Translator Cross Platform Braille File (Duxbury Systems, Inc.)
BRH	Baraha Document (Sheshadrivasu Chandrasekharan)
BRI	Basic Rate Interface File
BRI	FirstClass
BRIDGESORT	Adobe Bridge Cabinet File (Adobe Systems Incorporated)
BRITANNIA	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BRK	Brooktrout Fax-Mail File
BRK	The Brake! Mailer REXX Script
BRL	Ballistic Research Laboratory CAD
BRLCAD	Ballistic Research Laboratory CAD
BRM	Kega Fusion Backup RAM
BRN	PersonalBrain Data (Brain) File (TheBrain Technologies Corp.)
BRN	yBook Compiled eBook (Spacejock Software)
BRN	MegaHAL Brain File (Ai Research)
BRN	BrainStorm Data File (Brainstorm Software Ltd)
BRO	BR-532 Digital Studio
BRO	Creatacard Booklet/Brochure Project (Broderbund)
BRO	Embroidery File
BRO	Tree Professional Broadleaf Creator File
BRP	Tree Professional Broadleaf Creator Image
BRS	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BRS	Batchrun Batch File (Outer Technologies)
BRS	Corel Painter Brush File
BRS	RoboHELP Browse Sequence
BRSH	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BRSTM	BRSTM Audio Stream (Nintendo)
BRT	Booria Carpet Designer Professional Plus Edition 6.20 Robotuft Project (Booria CAD/CAM Systems)
BRT	PeoplePC Install Script (PeoplePC, Inc.)
BRT	Brooktrout Fax-Mail File
BRT	Micrografx System4 Browser file
BRU	Brutus Restore File
BRU	Photoline4 Brushes File
BRUSH	Xerox Doodle Brush File
BRUSH	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BRUSH2	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BRW	Application File Associated with financial institution(s) loan applications.
BRX	Multimedia Browsing Index
BRX	Beam Report Document (SYSTEAM)
BRX	Enterprise Information Portal Suite Backup and Restore Data/Settings (Epicor Software Corporation)
BRZ	DbBRZ File
BS	Printfox/Pagefox Bitmap
BS	Infinity Game Engine Compiled Script (BioWare Corp.)
BS1	Apogee Blake Stone Data
BS2	Burning Sand 2 Add-on (Max Nagl)
BS2	Basic Stamp 2 Code File
BSA	BSARC Compressed Archive
BSB	BioShock Saved Game (2K Games)
BSB	MapInfo Sea Chart (Mapinfo Corporation)
BSB	SWAT Sub-basin Output File
BSC	BinSCII Apple II Compressed Archive
BSC	Developer Studio Browser File (Microsoft Corporation)
BSC	Source Browser Database
BSC	Fortran Pwbrmake Object
BSC	Boyan Script
BSCS	Strategy2Act Balanced Scorecard File (AKS-Labs)
BSCT	Strategy2Act Balanced Scorecard Strategy File (AKS-Labs)
BSD	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BSD	Xilinx Integrated Software Environment Boundary-Scan Description Language (BSDL) File (Xilinx, Inc.)
BSD	FacetWin Bitwise Backup Set (FacetCorp)
BSD	Crossfire File
BSE	CRiSP Harvest File
BSF	Rainbow Six: Rogue Spear Buildspace File (Red Storm Entertainment, Inc.)
BSF	JCanyon: Grand Canyon for Java DEM File
BSF	Bridge-Soft Quarterly File
BSF	BadukSearch/BadukTracer Selected Game File
BSH	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BSH	BeanShell Script
BSI	BSPlayer Configuration
BSK	Bryce 4 File (DAZ Productions)
BSL	BSPlayer Configuration
BSM	SQLMatcher Project File (Berryware)
BSN	BSA Packing Program Archive (PhysTechSoft Ltd.)
BSN	MIDI File
BSP	Star Trek Elite Force Map File (Raven Software)
BSP	Quake Map (Id Software, Inc.)
BSP	Half-life/TFC/CS Map
BSP	Valve Game Map File (Valve Corporation)
BSP	BestAddress HTML Editor Site Project File (Multimedia Australia Pty. Ltd.)
BSP	arahnoWare Enterprise Sever 6 BSP Code Editor
BSP	Getic 3D Scene/Model File
BSP	Steam Source SDK Compiled Game Map File (Valve Corporation)
BSQ	ArcView Image File (ESRI)
BSQ	Oracle Control File
BSQ	Apple II BINSCII-encoded (Apple Inc.)
BSQ	BCDown Download
BST	Star Trek: Birth of the Federation Structure/Ship Info File
BST	BibTeX Style File
BSU	Brindys BriTray
BSV	BASIC Bsave Graphics
BSW	Office Business Scorecard Manager Workspace File (Microsoft Corporation)
BSY	VTrain (Vocabulary Trainer) Learning Cardfile (Paul Raedle)
BSY	FTN Soft Busy Flag
BSZ	BSplayer Compressed Skin File (BST2K Networks)
BS_	Bookshelf Find Menu Shell Extension (Microsoft Corporation)
BT	BluffTitler Gallery Show File (OuterSpace Software)
BT	VTBuilder Binary Terrain
BT	BTwin Project Data (Procedimientos-Uno, S.L.)
BT3	Control Runner Button Configuration File (MomSoft)
BTAB	Base Guitar Tabulature
BTC	Becker Tools Compressed Archive
BTD	Business-in-a-Box File (BizTree Inc.)
BTD	Power To-Do List Data File (Five O'clock Software)
BTF	Baires Turf Configuration File (Zamaroht & Karel)
BTF	Brother Scanner File
BTF	Basi Office TypeFace Document (Basi Computers)
BTG	FlightGear Scenery File (The FlightGear Crew)
BTH	Bathy Recorder Data File (Jeppesen Marine, Inc.)
BTL	Pok�mon NetBattle Battle Replay File (Smogon)
BTL	BEATO Lite Single Assessment Data (Unisys)
BTL	American Civil War File (Interactive Magic)
BTL	Inmos BooTabLe File
BTL	INPRISE Format Language Library (Borland Software Corporation)
BTM	4DOS Batch To Memory Batch File
BTN	JustButtons Animated Bitmap (Lincoln Beach Software)
BTN	buttonFile File (ButtonWare Inc.)
BTNDATA	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BTO	Baytex Organix! 2001 Language Kit
BTOA	Binary-to-ASCII Format
BTPC	BTPC Encoded Bitmap (John Robinson)
BTR	AviSys Bird Watcher Database (Jerry Blinn)
BTR	Btrieve Database File (Pervasive Software Inc.)
BTR	FrontPage Binary-Tree Index (Microsoft Corporation)
BTREE	Mac OS HFS+ B-tree File (Apple Inc.)
BTS	Creative Digital Blaster Digital VCR File
BTT	ICQ Find Users File (ICQ Inc.)
BTU	BEATO Unite Multiple Assessment Data (Unisys)
BTW	BarTender Barcode Label (Seagull Scientific, Inc.)
BTW	Steuer2001 File
BTX	BibTeX Document
BTX	SEEDIS Index
BTX	DB/TextWorks Database Term and Word Indexes (Inmagic, Inc.)
BTY	Railroad Tycoon 3 Building (PopTop Software Inc.)
BU	Pegasus Mail Temporary File (David Harris)
BUB	Ipix Spherical Panorama
BUB	Photobubble File
BUBBLES	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BUC	Photoshop Elements Backup File (Adobe Systems Incorporated)
BUD	Quicken Backup (Intuit Inc.)
BUDGET	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BUDGETS	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BUDGETX	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BUF	WinXL File
BUFFER	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BUFR	Meteorological Data
BUFR	Binary Universal Form for the Representation
BUG	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BUG	Bug (Problem) File
BUGFIXES	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BUGS	Generally Bugs File
BUGS	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BUILD	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BUILDER	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BUL	Holiday Lights Screen Saver Bulb File
BUL	Capella Report Card Data File (Castor & Pollux Software Inc.)
BUL	JSim I4 Bullseye Data Format (University of Washington)
BUM	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BUM	Poser Bump
BUN	Monkey Island 3
BUN	Cakewalk Audio Bundle File (Cakewalk)
BUNDLE	OS X Bundle (Plug-ins and Add-ons) (Apple Inc.)
BUNDLE	iMovie 3 Plug-in Bundle (Apple Inc.)
BUNNY	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BUNNY2	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BUP	Softcode Tracker Contact Manager Backup
BUP	PC-Bibliothek Update File
BUP	CD Indexer
BUP	DVD Info File Backup
BUP	Brother Embroidery System File
BUREAU	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BURGER	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BURNING	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BURST	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BUS	Netmino File
BUSH	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BUSYBOX	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BUT	Buttons! Button Definition
BUTTONS4	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BUY	Movie Data File
BUYING	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BV1	WordPerfect Overflow File (Corel Corporation)
BV2	WordPerfect Overflow File (Corel Corporation)
BV3	WordPerfect Overflow File (Corel Corporation)
BV4	WordPerfect Overflow File (Corel Corporation)
BV5	WordPerfect Overflow File (Corel Corporation)
BV6	WordPerfect Overflow File (Corel Corporation)
BV7	WordPerfect Overflow File (Corel Corporation)
BV8	WordPerfect Overflow File (Corel Corporation)
BV9	WordPerfect Overflow File (Corel Corporation)
BVC	IBM Voice Type Language Newuser File
BVD	BitDefender Vault File (BitDefender)
BVD	BvD Fileset
BVH	Biovision Motion File
BVH	Character Studio BioVision Motion Capture File (Autodesk, Inc.)
BVI	IBM Voice Type Language Newuser File
BVL	Micrografx Picture Publisher 8 Textures File
BVS	BVS Solitaire Collection
BW	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BW	Silicon Graphics Raw Black and White Bitmap (Silicon Graphics, Inc.)
BW1	Byteworx FMEA� FMEA Database (Byteworx Inc.)
BWA	BlindWrite BWA Builder Physical CD Characteristics File (VSO-Software)
BWB	Visual Baler Spreadsheet File
BWC	BeadWizard Color Palette (Black Hills Software)
BWD	Rally Online Car Description File (GameSpy Industries)
BWE	Black and White 2 Environment Data (Lionhead Studios)
BWG	BrainWave Generator Binaural Beat File (Noromaa Solutions)
BWI	BlindWrite Ver. 4 Image File (VSO-Software)
BWM	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BWM	Blaise File (Statistics Netherlands)
BWP	Book Writer Project
BWP	BeadWizard Pattern (Black Hills Software)
BWR	Kermit Beware Bug List
BWS	BlindWrite Ver. 4 Subchannel Data File (VSO-Software)
BWS	Enot External Photo Viewer Settings (Acritum Software)
BWT	CDmage Table of Contents
BWT	BlindWrite Ver. 4 Table of Contents File (VSO-Software)
BWU	BlindWrite (VSO-Software)
BWV	Business Wave File
BWW	Blaise File (Statistics Netherlands)
BWW	Bagpipe Notation
BWZ	WinImage Batch Configuration File
BXB	BasicX Compiled Project Bytecode (NetMedia, Inc.)
BXD	Broken Cross Disk Manager Database (Kevin Fucik)
BXF	Man's Best Friend Software Breeder Exchange Format
BXI	Blaise File (Statistics Netherlands)
BXM	BX-24 Basic Express Compiler Map
BXP	BX-24 Basic Express Compiler Module List
BXP	BootXP File
BXRC	Bochs Configuration File (The Bochs Project)
BXU	PictureGear Studio File (Sony Electronics Inc.)
BXX	blaxxun Contact
BXY	ShrinkIt Apple II Compressed Archive
BY	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BY	Spice Pspice File
BYO	CartoExploreur Cartographic Map (Bayo)
BYU	Movie File
BZ	Bzip UNIX Compressed File
BZ	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BZ1	WinTOTAL Automatic Backup (a la mode, inc.)
BZ2	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
bz2	Bzip 2 UNIX Compressed File
BZ2	ZPoc Christian Music Networks User File List (ZPoc)
BZA	BZA Compressed Archive
BZABW	AbiWord (The AbiSource Community)
BZF	Textures and Other Information
BZIP2	Compressed Archive Format
BZM	BusinessMAP Map File (ESRI)
BZN	Star Trek Armada Map File
BZPATCH	Unknown Apple II File (found on Golden Orchard Apple II CD Rom)
BZW	BZFlag Map (BZFlag Project Team)
B_T	Eru/erd File
B_W	1st Reader Mono Binary Screen Image
B_W	Atari/Macintosh Black and White Graphic
B_W	Image Lab
B~K	Backup