When you import an HHP file, a new RoboHelp project file (XPJ) is created.
1)Select File > Open Project > Local or Network Path.
2)Select HTML Help Project (*HHP) from the Files Of Type menu.
3)Navigate to the HHP file and open it.
tip: You can also import FrameMaker (.fm, .book, and .mif) files, Word files (.doc, .docx), PDF files, and XML files.
note: If you use an HTML editor other than Design Editor to author your content, you can still use RoboHelp for the project.