Dedicated CAD converter software program, or CADverters support great many different CAD formats including the common AutoCAD DWG and the Parasolid X_T format, which means dwg to x_t conversion should be certainly doable. Using these programs, it should be easy enough to convert CAD drawings even without access to a CAD software like AutoCAD or Inventor.
Open DWG file Open X_T fileA set of 3D modeling tools
A 3D product data optimalization software
A CAD/CAM software used to create 3D models
A suite of CAD applications