| .BLURB | Apple | Arquivos de dados | Golden Orchard Apple II CD Rom File | Unknown Software | Unknown Developer |
| .BM_ | Unknown Developer | Arquivos miscelâneas | Unknown File Type | Unknown Software | Unknown Developer |
| .BNN | Unknown Developer | Arquivos Gráficos | Vectorial Image File | Unknown Software | Unknown Developer |
| .BN_ | Unknown Developer | Arquivos miscelâneas | Ntgraph Ze32v215 File | Unknown Software | Unknown Developer |
| .BOA | Unknown Developer | Arquivos comprimidos | BOA Constrictor Compressed Archive | Unknown Software | Unknown Developer |
| .BONGO | Apple | Arquivos de dados | Golden Orchard Apple II CD Rom File | Unknown Software | Unknown Developer |
| .BOR | Apple | Arquivos de dados | Golden Orchard Apple II CD Rom File | Unknown Software | Unknown Developer |
| .BP | Data Access Worldwide | Arquivos de desenvolvedor | DataFlex Business Process Object | Unknown Software | Unknown Developer |
| .BPG | Open Source | Arquivos de imagem Raster | Better Portable Graphics (BPG) Image | Unknown Software | Unknown Developer |
| .BPU | Unknown Developer | Arquivos miscelâneas | Unknown File Type | Unknown Software | Unknown Developer |
| .BRHQUJL | Unknown Developer | Arquivos miscelâneas | Unknown File Type | Unknown Software | Unknown Developer |
| .BRUSH | Xerox | Arquivos de imagem Raster | Xerox Doodle Brush Bitmap Image | Unknown Software | Unknown Developer |
| .BTX | SmartWare Corporation | Arquivos de cópia | SmartWare Backup Text File | Unknown Software | Unknown Developer |
| .BUF | Unknown Developer | Arquivos Temporários | Buffer File | Unknown Software | Unknown Developer |
| .BUSH | Apple | Arquivos de dados | Golden Orchard Apple II CD Rom File | Unknown Software | Unknown Developer |
| .BUTTHEREIS | Unknown Developer | Arquivos miscelâneas | Unknown File Type | Unknown Software | Unknown Developer |
| .BVHJBVHJ | Unknown Developer | Arquivos miscelâneas | Unknown File Type | Unknown Software | Unknown Developer |
| .BWK | Unknown Developer | Arquivos miscelâneas | Unknown File Type | Unknown Software | Unknown Developer |
| .BWV | Unknown Developer | Arquivos miscelâneas | Business Wave File | Unknown Software | Unknown Developer |
| .BXX | Bitmanagement Software | Arquivos de configuração | BS Contact Parameter File | Unknown Software | Unknown Developer |
| .BYL | Unknown Developer | Arquivos miscelâneas | Uncommon File Extension | Unknown Software | Unknown Developer |
| .BYZ | Unknown Developer | Arquivos miscelâneas | Uncommon File Extension | Unknown Software | Unknown Developer |
| .BZF | Unknown Developer | Arquivos de jogos | Game File | Unknown Software | Unknown Developer |
| .C V | Unknown Developer | Arquivos miscelâneas | Unknown File Type | Unknown Software | Unknown Developer |
| .C#= | Unknown Developer | Arquivos miscelâneas | Uncommon File Extension | Unknown Software | Unknown Developer |
| .C0 | Apple | Arquivos de dados | Golden Orchard Apple II CD Rom File | Unknown Software | Unknown Developer |
| .C13 | Unknown Developer | Arquivos comprimidos | Charlie Packer Archive | Charlie Packer | Unknown Developer |
| .C1A | Unknown Developer | Arquivos miscelâneas | Uncommon File Extension | Unknown Software | Unknown Developer |
| .C20 | Unknown Developer | Arquivos miscelâneas | Uncommon File Extension | Unknown Software | Unknown Developer |
| .C2I | Unknown Developer | Arquivos de sistema | Driver File | Unknown Software | Unknown Developer |
| .C3B | Unknown Developer | Arquivos miscelâneas | Unknown File Type | Unknown Software | Unknown Developer |
| .C61 | Unknown Developer | Arquivos miscelâneas | Uncommon File Extension | Unknown Software | Unknown Developer |
| .C9 | Apple | Arquivos de dados | Golden Orchard Apple II CD Rom File | Unknown Software | Unknown Developer |
| .CAKEWALKWI | Unknown Developer | Arquivos miscelâneas | Uncommon File Extension | Unknown Software | Unknown Developer |
| .CALC | Apple | Arquivos de dados | Golden Orchard Apple II CD Rom File | Unknown Software | Unknown Developer |
| .CALENDAR19 | Unknown Developer | Arquivos miscelâneas | Uncommon File Extension | Unknown Software | Unknown Developer |
| .CAMERA | Unknown Developer | Arquivos miscelâneas | Unknown File Type | Unknown Software | Unknown Developer |
| .CAO | Unknown Developer | Arquivos miscelâneas | Uncommon File Extension | Unknown Software | Unknown Developer |
| .CAR | Unknown Developer | Arquivos de dados | Car Explorer Data File | Car Explorer | Unknown Developer |
| .CARAMBA | Unknown Developer | Arquivos miscelâneas | Uncommon File Extension | Unknown Software | Unknown Developer |
| .CASECONVER | Unknown Developer | Arquivos miscelâneas | Uncommon File Extension | Unknown Software | Unknown Developer |
| .CATANALYSI | Unknown Developer | Arquivos miscelâneas | Uncommon File Extension | Unknown Software | Unknown Developer |
| .CATDRAWIN | Unknown Developer | Arquivos miscelâneas | Unknown File Type | Unknown Software | Unknown Developer |
| .CATMATERIA | Unknown Developer | Arquivos miscelâneas | Uncommon File Extension | Unknown Software | Unknown Developer |
| .CBI | IBM | Arquivos de dados | IBM System/360 Column Binary Formatted File | Unknown Software | Unknown Developer |
| .CBIN | Unknown Developer | Arquivos miscelâneas | CACTVS Chemical Binary File | Unknown Software | Unknown Developer |
| .CC | Don Ho | Arquivos de desenvolvedor | C/C++ Source Code File | Unknown Software | Unknown Developer |
| .CCA | IBM | Arquivos de dados | Cc:Mail Archive File | Unknown Software | Unknown Developer |
| .CCH | Microsoft Corporation | Arquivos miscelâneas | .NET Security Resolution Cache File | Unknown Software | Unknown Developer |
| .CC_ | Unknown Developer | Arquivos de áudio | Audio Utility Midimach Compressed File | Unknown Software | Unknown Developer |
| .CDEVSAMPLE | Unknown Developer | Arquivos miscelâneas | Uncommon File Extension | Unknown Software | Unknown Developer |
| .CDIC | Unknown Developer | Arquivos de dados | ConlangDictionary File | ConlangDictionary | Unknown Developer |
| .CDMIA | Unknown Developer | Arquivos miscelâneas | Unknown File Type | Unknown Software | Unknown Developer |
| .CDMIC | Unknown Developer | Arquivos miscelâneas | Uncommon File Extension | Unknown Software | Unknown Developer |
| .CDMID | Unknown Developer | Arquivos miscelâneas | Unknown File Type | Unknown Software | Unknown Developer |
| .CDMIO | Unknown Developer | Arquivos miscelâneas | Unknown File Type | Unknown Software | Unknown Developer |
| .CDMIQ | Unknown Developer | Arquivos miscelâneas | Unknown File Type | Unknown Software | Unknown Developer |
| .CED | JVCKenwood Group | Arquivos de vídeo | JVC Camera Video Data File | Unknown Software | Unknown Developer |
| .CEE | Unknown Developer | Arquivos GIS | Compressed GPS Ephemeris Data | Unknown Software | Unknown Developer |
| .CEG | Unknown Developer | Arquivos Gráficos | Tempra Show Bitmap Graphic File | Unknown Software | Unknown Developer |
| .CEN | European Committee for Standardization | Arquivos de dados | CEN EN 13032 Photometric Data | Unknown Software | Unknown Developer |
| .CES | Unknown Developer | Arquivos miscelâneas | Uncommon File Extension | Unknown Software | Unknown Developer |
| .CGB | Unknown Developer | Arquivos de dados | Gameboy Color Data | Unknown Software | Unknown Developer |
| .CHANGELOG | Unknown Developer | Arquivos miscelâneas | Project Log Or Record File | Unknown Software | Unknown Developer |
| .CHB | Microsoft Corporation | Arquivos de desenvolvedor | OLE-DB Checkbook File | Unknown Software | Unknown Developer |
| .CHXX | Unknown Developer | Arquivos miscelâneas | Unknown File Type | Unknown Software | Unknown Developer |
| .CHZ | Unknown Developer | Arquivos comprimidos | ChArc Compressed File Archive | Unknown Software | Unknown Developer |
| .CIB | DIAL | Arquivos CAD | DIALux Luminaire Data | Unknown Software | Unknown Developer |
| .CKN | Disk Doctor Labs Inc. | Arquivos de dados | Disk Doctors License Log | Unknown Software | Unknown Developer |
| .CLM | YMAX | Arquivos de dados | MagicJack Call Log File | Unknown Software | Unknown Developer |
| .CLOG | SpreadMaster | Arquivos de dados | SpreadMaster Client Log File | Unknown Software | Unknown Developer |
| .CM | Rockstar Games | Arquivos de jogos | CLEO Custom Mission | Unknown Software | Unknown Developer |
| .CMGZ | Unknown Developer | Arquivos miscelâneas | Unknown File Type | Unknown Software | Unknown Developer |
| .CNDF | Unknown Developer | Arquivos de dados | Technomate CNDF Channel Editor Compressed Channel File | Unknown Software | Unknown Developer |
| .CO3 | Unknown Developer | Arquivos miscelâneas | Unknown File Type | Unknown Software | Unknown Developer |
| .COCO | Unknown Developer | Arquivos miscelâneas | Unknown Apple II Data File | Unknown Software | Unknown Developer |
| .COM1476662 | Unknown Developer | Arquivos miscelâneas | Unknown File Type | Unknown Software | Unknown Developer |
| .COMICSCART | Unknown Developer | Arquivos miscelâneas | Unknown File Type | Unknown Software | Unknown Developer |
| .COMMANDLIN | Unknown Developer | Arquivos miscelâneas | Unknown File Type | Unknown Software | Unknown Developer |
| .COMPLICATI | Unknown Developer | Arquivos miscelâneas | Unknown File Type | Unknown Software | Unknown Developer |
| .COMPRESSIO | Unknown Developer | Arquivos miscelâneas | Unknown File Type | Unknown Software | Unknown Developer |
| .CONFIDENTI | Unknown Developer | Arquivos miscelâneas | Unknown File Type | Unknown Software | Unknown Developer |
| .CONFIGDBLI | Unknown Developer | Arquivos miscelâneas | Unknown File Type | Unknown Software | Unknown Developer |
| .CONTENTSON | Unknown Developer | Arquivos miscelâneas | Unknown File Type | Unknown Software | Unknown Developer |
| .CONTROLPAN | Unknown Developer | Arquivos miscelâneas | Unknown File Type | Unknown Software | Unknown Developer |
| .CONVERSION | Unknown Developer | Arquivos miscelâneas | Unknown File Type | Unknown Software | Unknown Developer |
| .CONVERTER | Apple | Arquivos de dados | Golden Orchard Apple II CD Rom File | Unknown Software | Unknown Developer |
| .COOKIES | Apple | Arquivos de dados | Golden Orchard Apple II CD Rom File | Unknown Software | Unknown Developer |
| .COP | Cisco Systems | Arquivos de configuração | CISCO Options Package Settings | Unknown Software | Unknown Developer |
| .CORE | Unknown Developer | Arquivos 3D | Core Bitmap Image File | Unknown Software | Unknown Developer |
| .CORELPROJE | Unknown Developer | Arquivos miscelâneas | Unknown File Type | Unknown Software | Unknown Developer |
| .CORES | Unknown Developer | Arquivos miscelâneas | Unknown File Type | Unknown Software | Unknown Developer |
| .CORRECT | Apple | Arquivos de dados | Golden Orchard Apple II CD Rom File | Unknown Software | Unknown Developer |
| .CORRECTED | Unknown Developer | Arquivos miscelâneas | Unknown File Type | Unknown Software | Unknown Developer |
| .CP2 | Unknown Developer | Arquivos de layout de página | Compel V2 Presentation | Unknown Software | Unknown Developer |
| .CPH_9FA6FA | Unknown Developer | Arquivos miscelâneas | Unknown File Type | Unknown Software | Unknown Developer |
| .CPZ | Terry A. Davis | Arquivos de desenvolvedor | LoseThos C+ Source File | Unknown Software | Unknown Developer |
| .CQ1 | Unknown Developer | Arquivos miscelâneas | Unknown File Type | Unknown Software | Unknown Developer |
| .CRA | Unknown Developer | Arquivos miscelâneas | Advanced Crack File | Unknown Software | Unknown Developer |
| .CRACK | Apple | Arquivos de dados | Golden Orchard Apple II CD Rom File | Unknown Software | Unknown Developer |
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