Convertering Parasolid X_T format to Solidworks SLDPRT format should be possible with a dedicated CAD conversion program like the CrossManager. Other than that, it might be possible to achieve the same thing with exporting drawings to DWG/DXF format in Parasolid and importing it to SolidWorks.
Convert Parasolid model (text) to SolidWorks CAD part.
We found 2 software records in the database related to .x_t to .sldprt file format conversion.
Microsoft Windows software - convert x_t to sldprt on Windows
A CAD converter with huge format support
Convert from x_t 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 x_t 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 CAD visualizaton, analyzation and translating system