SolidWorks can export and save many CAD formats (including ISO STEP product format) to an eDrawings files (*.eprt) for sharing and publishing purposes. This export is meant for viewing only, not for further editing and can only be opened using eDrawings viewers.
Convert ISO-10303 STEP product data to SolidWorks eDrawing part file.
We have found one software suitable in our database for this conversion.
Microsoft Windows software - convert stp to eprt on Windows
A 2D and 3D CAD construction software
Convert from stp 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.