| File Extension: | OCA |
| File Type Description: | Custom Control Library Type File |
| File Type Developer: | Microsoft Corporation |
| Primary Associated Software: | Microsoft Visual Basic |
| Primary Software Developer: | Microsoft Corporation |
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Microsoft Visual Basic is the primary software program that utilizes the Custom Control Library Type File file, originally developed by Microsoft Corporation. Our data shows that OCA files are frequently utilized by PC users in United States and popular on the Windows 10 platform. Generally, we have found that most of these people are Google Chrome users.
 | Microsoft Visual Basic by Microsoft Corporation |
| Windows 10 | Windows 11 | Windows 6 | Windows 8.1 |
 | Windows |
| Extension | File Type Developer | File Category | File Type Description |
|---|---|---|---|
| .SY3 | Harvard Graphics | Data Files | Harvard Graphics Symbol File |
| .SOB | Apache Software Foundation | Raster Image Files | OpenOffice.org Impress Bimap Styles File |
| .THEME | Microsoft Corporation | System Files | Microsoft Plus! Desktop Theme |
| .EBF | Microsoft Corporation | Data Files | Pocket PC WindowsCE Form |
| .ESN | Epic Games | Game Files | Unreal Engine Language Localization |
| .DBP | Microsoft Corporation | Developer Files | Microsoft Visual Studio Visual C++ Database Project |
| .DMP | Microsoft Corporation | System Files | Windows Memory Dump File |
| .LIT | Microsoft Corporation | eBook Files | Microsoft Reader eBook File |
| .NRW | Nikon | Camera Raw Files | Nikon Raw Image File |
| .KDC | Kaspersky Lab | Data Files | Kaspersky Virus Database File |
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