It might be possible to use Adobe RoboHelp glossary files (*.glo) and use them for creating RoboHelp projects (*.rha files). Probably the only way how these two formats can be somehow converted.
Convert Adobe RoboHelp glossary file to Adobe RoboHelp AIR help project file.
We found one software available in the database for this conversion.
Microsoft Windows software - convert glo to rha on Windows
Professional tool for creating help documentation
Convert from glo file format
The table with program actions contains information about what each program is capable of doing with their files. This may be a good pointer for further searches for certain file conversions and help you find the converter you are looking for if our search result is insufficient for you. However, it is far from perfect and may sometimes show results which are not really usable because of the nature of the software handles the files. So a conversion that appears as possible, just because of matched actions, may in fact not be possible.