The properties for selected objects in a drawing can be viewed from Visual LISP. 
Note: The Visual LISP IDE is available on Windows only. 
- In the AutoCAD drawing window, select the drawing objects whose extended data you want to view. 
- In Visual LISP, click View  Browse Drawing Database Browse Drawing Database Browse Selection. Browse Selection.Visual LISP invokes the ssget function to prompt you to define a selection set in the AutoCAD drawing window.  
- In the Inspect: PICKSET window, double-click the specific entity name you want to inspect. 
 
- In the Inspect window, right-click the object line and click Inspect Raw Data.