prt to x_t conversion is most likely used for the purpose of exporting 3D models or content between generic 3D part files (.prt) and Parasolid formats (.x_t), or import of part files to Parasolid. Many tools use .prt files, so it's hard to give a precise answer for such export, other than it should be possible. Sometimes using exchange format for a middle step conversion is the best choice how to approach such export.
Updated: July 28, 2023