File extensions beginning with the letter B. Commonly used extensions are listed in bold.

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

All File Extensions | "B" Computer Terms

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