3D models or part saved in 3D NURBS CAD files (.3dm) can be translated and saved in other 3D CAD formats, including standard .prt files. Should be doable in 3D modeling / CAD software or special CAD translation software.
Convert 3D NURBS CAD file to CAD 3D part or component.
We found one software available in the database for this conversion.
Microsoft Windows software - convert 3dm to prt on Windows
A CAD converter with huge format support
Convert from 3dm 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.