Use PURGEAECDATA to remove the invisible AEC data (AutoCAD Architecture and AutoCAD Civil 3D custom objects) in the drawing.
- At the Command prompt, enter PURGEAECDATA.
- Enter Yes to purge the invisible AEC data.
Note:
- Install the AutoCAD Civil 3D Object Enabler to purge the Civil 3D custom objects.
- Use PURGE to delete unused named objects such as block definitions and so on.