Select STEP from the File>Export submenu. You are now presented with a selection menu that allows you to select one or more solids and/or sheet bodies.
Select the solids/sheet bodies you wish to export. The Export STEP File dialog box appears. Through this dialog you are able to set export options and export the selected solids and/or sheet bodies to a STEP file.
Select theOPTIONS configure the export settings that are available.
Enter a filename for the exported file and click SAVE.