1. In the ug interface, click Save As, and select stp or STEP format for archiving in the pop-up dialog box, so that the exported entity is the entity. Select STP format to open in pore.
2. In the ug interface, click Save As, and select IGS or IGES format to save in the pop-up dialog box, so that the exported surface is the surface. Select IGS format in pore to open it.