| File Extension: | O |
| File Type Description: | Compiled Object File |
| File Type Developer: | Microsoft Corporation |
| Primary Associated Software: | Microsoft Visual Studio |
| Primary Software Developer: | Microsoft Corporation |
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The O file extension is a Compiled Object File file developed originally by Microsoft Corporation for Microsoft Visual Studio. Commonly, Compiled Object File files are found on user computers from United States, and on PCs running the Windows 10 operating system. In most cases, these users are surfing the internet using the Google Chrome browser.
 | Microsoft Visual Studio by Microsoft Corporation |
 | GNU Compiler Collection (GCC) by GNU Project |
| Windows 10 | Windows 11 | Windows 6 | Windows 8.1 |
 | Windows |
 | Mac |
 | Linux |
| Extension | File Type Developer | File Category | File Type Description |
|---|---|---|---|
| .MDBACKUP | Apple | Backup Files | iPhone Data Backup File |
| .CPF | IBM | Data Files | Cognos Project File |
| .PPTX | Microsoft Corporation | Data Files | PowerPoint Open XML Presentation |
| .HH | Microsoft Corporation | Developer Files | C++ Header File |
| .OFFICEUI | Microsoft Corporation | Settings Files | Microsoft Office UI Customization File |
| .MNY | Microsoft Corporation | Data Files | Microsoft Money File |
| .ACCESSOR | Microsoft Corporation | Data Files | Microsoft Visual Studio Accessor File |
| .DMP | Microsoft Corporation | System Files | Windows Memory Dump File |
| .JIF | Joint Photographic Experts Group | Raster Image Files | JPEG Image |
| ._VBXSLN100 | Microsoft Corporation | Data Files | Microsoft Visual Basic File |
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*Files that are not supported can be opened in binary format.
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