.CAB | Microsoft Corporation | Ficheiros de Sistema | Windows Cabinet File | Windows Installer | Microsoft Corporation |
.CAG | Microsoft Corporation | Ficheiros de Imagem de Vetor | ClipArt Gallery Package | Microsoft PowerPoint | Microsoft Corporation |
.CAL | Newera Software Technology, Inc. | Ficheiros de Imagem Raster | CALS Raster File | Microsoft Outlook | Microsoft Corporation |
.CAMP | Microsoft Corporation | Ficheiros de Configurações | WCS Color Appearance Model Profile File | Microsoft Windows | Microsoft Corporation |
.CAP | Microsoft Corporation | Ficheiros de Dados | Network Monitor Packet Capture Data File | Microsoft Network Monitor | Microsoft Corporation |
.CAT | Microsoft Corporation | Ficheiros de Sistema | Windows Catalog File | Microsoft Windows | Microsoft Corporation |
.CA_ | Microsoft Corporation | Ficheiros Compactados | Microsoft Cabinet File | Microsoft Windows | Microsoft Corporation |
.CB | Microsoft Corporation | Ficheiros de Sistema | Microsoft Clean Boot File | Microsoft Windows | Microsoft Corporation |
.CBO | Microsoft Corporation | Ficheiros de Dados | Microsoft Interactive Training File | Microsoft Windows | Microsoft Corporation |
.CBT | Various Developers | Ficheiros Compactados | Comic Book TAR File | Microsoft Support | Microsoft Corporation |
.CC | Don Ho | Ficheiros de Desenvolvedor | C/C++ Source Code File | Microsoft Visual Studio | Microsoft Corporation |
.CC2 | Briggs Softworks | Ficheiros de Dados | Calendar Commander Calendar Data | Microsoft Notepad | Microsoft Corporation |
.CCA | IBM | Ficheiros de Dados | Cc:Mail Archive File | Microsoft Importer for Lotus ccMail Archives | Microsoft Corporation |
.CCH | Microsoft Corporation | Uncommon Files | .NET Security Resolution Cache File | Microsoft .NET Framework | Microsoft Corporation |
.CD | Microsoft Corporation | Ficheiros de Desenvolvedor | Visual Studio Class Diagram | Microsoft Visual Studio | Microsoft Corporation |
.CDA | Microsoft Corporation | Ficheiros de Áudio | CD Audio Track Shortcut | Microsoft Windows Media Player | Microsoft Corporation |
.CDAT | Microsoft Corporation | Uncommon Files | Internet Security And Acceleration (ISA) Server Cache File | Microsoft Internet Security and Acceleration (ISA) | Microsoft Corporation |
.CDB | Nokia | Ficheiros de Base de Dados | Symbian Phonebook Database | Microsoft ActiveSync | Microsoft Corporation |
.CDDA | Microsoft Corporation | Ficheiros de Áudio | CD Digital Audio File | Logic Express | Microsoft Corporation |
.CDF | Wolfram Research | Ficheiros de Layout de Página | Computable Document Format File | Internet Explorer | Microsoft Corporation |
.CDF-MS | Microsoft Corporation | Uncommon Files | ClickOnce Compiled Manifest File | Microsoft ClickOnce | Microsoft Corporation |
.CDMP | Microsoft Corporation | Ficheiros de Sistema | WCS Device Model Profile | Microsoft Windows | Microsoft Corporation |
.CDR | Corel | Ficheiros de Imagem de Vetor | CorelDRAW Vector Image File | Microsoft Windows Media Player | Microsoft Corporation |
.CDX | Microsoft Corporation | Ficheiros de Dados | Compound Index File | Microsoft Visual FoxPro | Microsoft Corporation |
.CDXML | PerkinElmer | Ficheiros de Dados | ChemDraw XML File | Microsoft Windows PowerShell | Microsoft Corporation |
.CEL | Affymetrix | Ficheiros de Dados | Affymetrix Probe Results File | Microsoft Notepad | Microsoft Corporation |
.CELX | Open Source | Ficheiros Executáveis | Celestia Script File | Microsoft Notepad | Microsoft Corporation |
.CER | Microsoft Corporation | Ficheiros Web | Internet Security Certificate | Internet Explorer | Microsoft Corporation |
.CF | Proofpoint, Inc. | Ficheiros de Configurações | Sendmail Configuration File | Microsoft Notepad | Microsoft Corporation |
.CFB | Microsoft Corporation | Ficheiros de Dados | Compound Binary File | Microsoft Visual Studio | Microsoft Corporation |
.CFG | Unknown Developer | Ficheiros de Desenvolvedor | Configuration File | Microsoft Notepad | Microsoft Corporation |
.CFK | Microsoft Corporation | Uncommon Files | Microsoft Developer Studio Diagram File | Microsoft Visual Studio | Microsoft Corporation |
.CFL | Corel Corporation | Uncommon Files | Corel Flow Flow Chart File | Microsoft Visual Studio | Microsoft Corporation |
.CGI | Unknown Developer | Ficheiros Executáveis | Common Gateway Interface Script | Microsoft Notepad | Microsoft Corporation |
.CH3 | Harvard Graphics | Ficheiros de Layout de Página | Harvard Graphics DOS Chart File | ACD Systems Canvas | Microsoft Corporation |
.CHART | Interscape | Ficheiros de Texto | Feedback Chart File | Microsoft Notepad | Microsoft Corporation |
.CHESSTITANSSAVE-MS | Microsoft Corporation | Ficheiros de Jogo | Chess Titans Saved Game | Microsoft Windows | Microsoft Corporation |
.CHG | Quicken | Ficheiros de Dados | Quicken Online Data File | Microsoft Windows | Microsoft Corporation |
.CHI | Microsoft Corporation | Ficheiros de Dados | Microsoft Help File Index | Microsoft Visual FoxPro | Microsoft Corporation |
.CHK | Sophos | Ficheiros de Dados | InterCheck Checksum Database | Internet Explorer | Microsoft Corporation |
.CHL | Leadtek Research | Ficheiros de Configurações | WinFast PVR2 Channel List | Internet Explorer | Microsoft Corporation |
.CHM | Microsoft Corporation | Ficheiros Web | Compiled HTML Help File | Microsoft HTML Help Workshop | Microsoft Corporation |
.CHORD | Open Source | Ficheiros de Texto | Song Chords File | Microsoft Word | Microsoft Corporation |
.CHS | Microsoft Corporation | Ficheiros de Sistema | Windows Chinese Noise-Word List File | Microsoft Windows | Microsoft Corporation |
.CHT | Nintendo | Ficheiros de Jogo | SNES Cheat File | Microsoft Notepad | Microsoft Corporation |
.CI | Microsoft Corporation | Ficheiros de Sistema | Windows Content Indexer Catalog File | Microsoft Windows | Microsoft Corporation |
.CIK | Corel | Ficheiros de Configurações | Corel Graphics 10 Custom Dual Tone File | Microsoft Notepad | Microsoft Corporation |
.CIL | Symantec Corporation | Ficheiros de Dados | Norton CleanSweep Installation Log File | Microsoft Notepad | Microsoft Corporation |
.CKP | Microsoft Corporation | Ficheiros de Base de Dados | SQL Server Checkpoint File | Microsoft SQL Server | Microsoft Corporation |
.CKS | Microsoft Corporation | Ficheiros de Configurações | Microsoft Windows CE Image Info Data | Microsoft Windows CE Embedded | Microsoft Corporation |
.CLB | Microsoft Corporation | Ficheiros de Sistema | COM+ Catalog File | Microsoft COM+ | Microsoft Corporation |
.CLC | Microsoft Corporation | Ficheiros de Dados | Microsoft Schedule+ 7 Habits Mission Statement Data | Microsoft Schedule Plus | Microsoft Corporation |
.CLG | Microsoft Corporation | Ficheiros de Sistema | Windows Catalog File | Microsoft Windows | Microsoft Corporation |
.CLN | Microsoft Corporation | Ficheiros de Cópia de Segurança | Microsoft Windows 3.x Configuration Backup File | Microsoft Windows 3.x | Microsoft Corporation |
.CLW | Microsoft Corporation | Ficheiros de Desenvolvedor | Visual C++ ClassWizard File | Microsoft Visual C++ | Microsoft Corporation |
.CLX | IBM | Ficheiros de Dados | Rational XDE | Microsoft Outlook | Microsoft Corporation |
.CM0013 | Samsung Electronics | Ficheiros de Sistema | Samsung Smart TV Index File | Microsoft Word | Microsoft Corporation |
.CMD | Microsoft Corporation | Ficheiros Executáveis | Windows Command File | Microsoft Notepad | Microsoft Corporation |
.CMN | Microsoft Corporation | Ficheiros de Dados | Systems Management Server (SMS) Update | Microsoft Systems Management Server | Microsoft Corporation |
.CMO | ASUS | Ficheiros de Sistema | ASUS BIOS File | Microsoft Windows | Microsoft Corporation |
.CMP | Microsoft Corporation | Ficheiros de Configurações | Windows Connection Manager Profile | Microsoft Windows Server 2016 | Microsoft Corporation |
.CMS | Opera Software | Ficheiros Web | Content Management System Web Page File | Internet Explorer | Microsoft Corporation |
.CMX | Corel | Ficheiros de Imagem de Vetor | Corel Metafile Exchange Image File | ACD Systems Canvas | Microsoft Corporation |
.CNF | MySQL AB | Ficheiros de Configurações | MySQL Configuration File | Windows Telnet | Microsoft Corporation |
.CNT | Microsoft Corporation | Ficheiros de Sistema | Help Contents File | Microsoft HTML Help Workshop | Microsoft Corporation |
.CNV | ACD Systems | Ficheiros de Imagem de Vetor | Canvas Drawing File | ACD Systems Canvas | Microsoft Corporation |
.CN_ | Microsoft Corporation | Ficheiros Compactados | Compressed Windows Help Content | Microsoft Windows | Microsoft Corporation |
.COD | Unknown Developer | Ficheiros de Desenvolvedor | Compiled Source Code | Microsoft Visual Studio | Microsoft Corporation |
.COL | Open Source | Ficheiros de Dados | Bibexcel File | Microsoft Multiplan | Microsoft Corporation |
.COM | Microsoft Corporation | Ficheiros Executáveis | DOS Command File | Microsoft Windows | Microsoft Corporation |
.COMFYCAKESSAVE-MS | Microsoft Corporation | Ficheiros de Jogo | Comfy Cakes Saved Game File | Comfy Cakes | Microsoft Corporation |
.COMPOSITEFONT | Microsoft Corporation | Ficheiros de Fonte | Windows Composite Font File | Microsoft XML Notepad | Microsoft Corporation |
.CONF | Unknown Developer | Ficheiros de Configurações | Generic Configuration File | Microsoft Notepad | Microsoft Corporation |
.CONFIG | Unknown Developer | Ficheiros de Desenvolvedor | Configuration File | Microsoft Notepad | Microsoft Corporation |
.CONTACT | Microsoft Corporation | Ficheiros de Dados | Windows Contact File | Microsoft Windows | Microsoft Corporation |
.COO | Autodesk, Inc. | Ficheiros de Texto | AutoCAD Bounding Coordinates Cookie | Microsoft Notepad | Microsoft Corporation |
.COV | Microsoft Corporation | Ficheiros de Layout de Página | Fax Cover Page File | Microsoft Fax Cover Page Editor | Microsoft Corporation |
.COVERAGE | Microsoft Corporation | Ficheiros de Dados | Visual Studio Code Coverage Report | Microsoft Visual Studio | Microsoft Corporation |
.COVERAGEXML | Microsoft Corporation | Ficheiros de Dados | Microsoft Visual Studio Code Coverage File | Microsoft Visual Studio | Microsoft Corporation |
.CPC | Cartesian Products, Inc. | Ficheiros de Imagem Raster | CPC Compressed Image File | Internet Explorer | Microsoft Corporation |
.CPE | Microsoft Corporation | Ficheiros de Layout de Página | Fax Cover Page File | Microsoft Fax Cover Page Editor | Microsoft Corporation |
.CPF | IBM | Ficheiros de Dados | Cognos Project File | Microsoft Makecab | Microsoft Corporation |
.CPI | Sony | Ficheiros de Vídeo | AVCHD Video Clip Information | MS-DOS | Microsoft Corporation |
.CPK | CRI Middleware | Ficheiros de Jogo | CRI Middleware Package | Microsoft Winqual Submission Tool | Microsoft Corporation |
.CPL | Microsoft Corporation | Ficheiros de Sistema | Windows Control Panel Item | Microsoft Windows | Microsoft Corporation |
.CPN | Microsoft Corporation | Ficheiros de Jogo | Age Of Mythology Campaign File | Age of Empires II | Microsoft Corporation |
.CPP | Open Source | Ficheiros de Desenvolvedor | C++ Source Code File | Microsoft Visual Studio | Microsoft Corporation |
.CPQ | Compaq | Ficheiros de Sistema | Compaq OEM Disc Configuration File | Microsoft Notepad | Microsoft Corporation |
.CPR | Steinberg | Ficheiros de Áudio | Cubase Project | Microsoft Notepad | Microsoft Corporation |
.CPT | Corel | Ficheiros de Imagem Raster | Corel Photo-Paint Image | Microsoft ActiveSync | Microsoft Corporation |
.CR2 | Canon Inc. | Ficheiros Raw de Câmera | Canon Digital Camera Raw Image File | Microsoft Windows Photos | Microsoft Corporation |
.CRD | Open Source | Uncommon Files | Guitar Tabs | Microsoft Word | Microsoft Corporation |
.CRDS | Microsoft Corporation | Ficheiros de Cópia de Segurança | Windows CardSpace Backup File | Microsoft Windows 7 | Microsoft Corporation |
.CRL | Various Developers | Ficheiros Web | Certificate Revocation List File | Microsoft IIS | Microsoft Corporation |
.CRT | Mozilla | Ficheiros Web | Security Certificate | Internet Explorer | Microsoft Corporation |
.CRTX | Microsoft Corporation | Ficheiros de Dados | Office 2007 Chart Template File | Microsoft Excel | Microsoft Corporation |
.CRW | Canon Inc. | Ficheiros Raw de Câmera | Canon Raw CIFF Image File | Microsoft Windows Photos | Microsoft Corporation |
.CS | Microsoft Corporation | Ficheiros de Desenvolvedor | C# Source Code File | Visual Studio Code | Microsoft Corporation |
.CSD | Valve | Ficheiros de Jogo | Steam Game Data Backup File | Microsoft SharePoint Server | Microsoft Corporation |
.CSH | Adobe Systems Incorporated | Uncommon Files | Photoshop Custom Shapes File | Microsoft Notepad | Microsoft Corporation |