The option allows you to import geometry directly from various sources, including several faceted geometry formats (Nastran, Patran, STL, or VRML) or CAD drawing packages (CATIA V4, GEMS, Plot3D, Rhino 3DM). When you select the CAD software format of the geometry file you want to import; a corresponding window will pop up with further options.
Options for importing geometry are shown in Figure 18: Import Geometry Options.
For detailed CAD-related information specific to Ansys Workbench, see the CAD Integration section of the product help.