| File Extension: | HPJ |
| File Type Description: | Help Project File |
| File Type Developer: | Microsoft Corporation |
| Primary Associated Software: | Adobe RoboHelp |
| Primary Software Developer: | Adobe Systems Incorporated |
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Adobe Systems Incorporated created the Help Project File (HPJ) file for the Adobe RoboHelp software series. Our data shows that HPJ files are frequently utilized by PC users in United States and popular on the Windows 10 platform. A vast majority of these users are opting to use Google Chrome as their preferred internet browser.
 | Adobe RoboHelp by Adobe Systems Incorporated |
 | Microsoft Windows Help by Microsoft Corporation |
| Windows 10 | Windows 11 | Windows 6 | Windows 8.1 |
 | Windows |
 | Mac |
| Extension | File Type Developer | File Category | File Type Description |
|---|---|---|---|
| .0B | Adobe Systems Incorporated | Font Files | Adobe PageMaker Printer Font |
| .MIF | Adobe Systems Incorporated | Page Layout Files | FrameMaker Interchange Format File |
| .JSPA | Xinox Software | Web Files | Java Servlet Alias |
| .FH10 | Adobe Systems Incorporated | Vector Image Files | FreeHand 10 Drawing File |
| .SAT | Spatial Corp | CAD Files | ACIS SAT 3D Model File |
| .PFX | Various Developers | System Files | PKCS #12 Certificate File |
| .NCX | IDPF (International Digital Publishing Forum) | eBook Files | EPUB Navigation Control XML File |
| .SHC | Adobe Systems Incorporated | Data Files | Adobe Photoshop Contours File |
| .PM3 | Crouzet | CAD Files | Crouzet Logic Software M3 File |
| .PBK | Microsoft Corporation | Data Files | Dial-Up Phone Book File |
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