You can open CAD documents from a workspace, or from various places in the commonspace while working in the embedded browser of a Windchill Workgroup Manager or Creo Parametric. You can open CAD documents from a standalone browser if the appropriate CAD application is installed on your machine. In addition, you can open non-native CAD documents in Creo Parametric if a preference supporting the Associated Topology Bus is set in Windchill. For more information see the guide, Using Creo Parametric with Windchill.