A lot of users try to convert models or drawings saved in SketchUp format (.skp) to other 3D modeling / CAD formats so they can work with them in other programs. Some exports can be done in almost any program, for some unique one you have to look for some of the dedicated 3D modeling conversion tools that support this conversion.
Convert SketchUp graphics to Pro/ENGINEER rendering file.
We found one software available in the database for this conversion.
Microsoft Windows software - convert skp to slp on Windows
A 3D CAD translation softwate
Convert from skp 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.