It is most likely possible to export individual parts or models from SolidWorks assembly files (.sldasm) and save them as an common 3D object file (.obj). Except for Solidworks itself, it may be possible to perform this sldasm to obj conversion in plenty of other 3D modeling / conversion tools, some are listed below.
Open SLDASM file Open OBJ fileAn online CAD conversion service
A commercial online CAD converter
A 3D CAD translation software
A dedicated CAD converter