Collada 3D format (*.dae) is well supported in several other 3D modeling / CAD programs so it should be no trouble to find one that is able to convert SolidWorks SLDPRT file to DAE format. Not all data may be successfully converted though.
Convert SolidWorks CAD part to Collada 3D digital asset exchange data.
We found 4 software records in the database related to .sldprt to .dae file format conversion.
Microsoft Windows software - convert sldprt to dae on Windows
A 3D CAD translation softwate
Convert from sldprt 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 sldprt to dae. 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 3D product data optimalization software
On-line services software - convert sldprt to dae on web
A commercial online CAD converter
An online CAD conversion service