x_t to obj conversion basically represents an export of models saved in Parasolid format (.x_t) to a common 3D object format (.obj) that can be done with several 3D modeling tools with Parasolid support, or perhaps some dedicated conversion programs for 3D models.
Open X_T file Open OBJ fileA Mac version of the popular 3D visualisation software
An online CAD conversion service
A commercial online CAD converter
A 3D CAD translation software
A dedicated CAD converter