What is a DWG file? - A DWG file is a proprietary binary file format used for storing two and three dimensional design data and metadata. It is the native format for several CAD packages including AutoCAD, DraftSight, IntelliCAD (and its variants), Caddie and Open Design Alliance compliant applications.
Click on the 'Manage Views' button which is located on the HOME menu ribbon.
The Manage Views dialog box will now appear showing your list of views.
Select the View you want to edit and click the Edit button.
The Edit View dialog will now appear.
Click on the DWG OPTIONS tab to access the File Types as shown below.
You have 2 file types to choose from, select the type that you have been asked for then click OK.
DWG (Version 2004)
DXF