About Saving non-Creo Models as Creo Models
You can use the File > Save As > Save a Copy command to save Autodesk Inventor, CATIA, SolidWorks, NX, and Creo Elements/Direct part and assembly models as Creo.prt and .asm files. The Associative Topology Bus (ATB) information of the non-Creo models is preserved in the saved part and assembly models.
Similarly, you can use the File > Save As > Mirror Part and the File > Save As > Save a Mirror Assembly commands to mirror non-Creo models as Creo models. If you select the Mirror Preview geometry check box in the Mirror Assembly dialog box, you can see a preview of the mirrored geometry of the non-Creo models before you save them as mirrored models.
The non-Creo models saved as Creo models cannot have the same names as the non-Creo parts and assemblies. You must specify alternate names for the models in the Save a Copy or Mirror Assembly dialog box. The Creo.prt and .asm models can include multi-byte and special characters as part of their model names. When you save non-Creo models or native assemblies that have non-Creo components, you can specify alternate names for the non-Creo components in the Assembly Save A Copy dialog box. The non-Creo components are saved as Creo models with new names when you specify Save a Copy as the Action for the renamed non-Creo components in the Assembly Save A Copy dialog box.