It may be possible to recover the SLDPRT CAD file from the EDRW file using Solidworks software. But it is likely you would need the actual source for the EDRW file first, which may even be the SLDPRT drawing in the first place.
Convert SolidWorks eDrawing file to SolidWorks CAD part.
We have found one software suitable in our database for this conversion.
Microsoft Windows software - convert edrw to sldprt on Windows
A popular is 2D and 3D CAD (computer-aided design) and CAE (computer-aided engineering) construction software for Microsoft Windows developed by SolidWorks Corporation.
SolidWorks is distributed in three distributions: Solidworks Premium, Solidworks Professional and SolidWorks Standard.
Convert from edrw file
to sldprt file
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.