| 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 |
|---|---|---|---|
| .SWZ | Adobe Systems Incorporated | Web Files | Adobe Flash Player Cache File |
| .C4D | MAXON Computer | 3D Image Files | Cinema 4D Model File |
| .AVA | Open Source | eBook Files | AvaaBook eBook |
| .VB | Microsoft Corporation | Developer Files | Visual Basic Project Item File |
| .EDML | Adobe Systems Incorporated | Developer Files | Adobe Extension Data Markup Language File |
| .Q8R | Flaming Pear Software | Plugin Files | Flood Photoshop Plug-in |
| .EPS | Adobe Systems Incorporated | Vector Image Files | Encapsulated PostScript File |
| .RTA | Adobe Systems Incorporated | Data Files | RoboHelp RTA Data File |
| .8BY | Adobe Systems Incorporated | Plugin Files | PhotoDeluxe Plugin |
| .EPUB | IDPF (International Digital Publishing Forum) | eBook Files | Open eBook File |
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