I have Robohelp 10 and when I click File>Import, the Map File choice is grayed out.
It's likely because you haven't given focus to the proper area of the application.
For example, if you have focus on the Topics section of the Project Manager pod, the option for Map File is disabled (or grayed out).
But if you open the Project Set-up pod and give focus to the Context-Sensitive Help area, you should then be able to import Map files.
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