STEP (Standard for the Exchange of Product Data) is an open data format standard used in the CAD/CAM/CAE industry, that allows for the exchange of 3D model geometric (surface and wireframes) and product manufacturing information (PMI) between OEMs and suppliers. In this blog, we will take a closer look at the 3D model data exchange capabilities of the CATIA Extended STEP Interface (SXT) license for CATIA V5 or 3DEXPERIENCE CATIA. SXT is an add-on or shareable license.