The easiest way to convert 3D meshes saved in .obj files to SLDPRT format is to use SolidWorks and simply import the model for further modeling. Alternatively, you can use some other 3D modeling programs or dedicated 3D converters like CrossManager.
Convert 3D object graphics to SolidWorks CAD part.
We found 4 software records in the database related to .obj to .sldprt file format conversion.
Microsoft Windows software - convert obj to sldprt on Windows
A 2D and 3D CAD construction software
Convert from obj file format
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned obj to sldprt. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
A set of 3D modeling tools
A CAD converter with huge format support
Multiplatform software - convert obj to sldprt on any platform
3D CAD/CAM tool for product development