Problem: File extensions for CAD drawings cannot be renamed in ArcCatalog


Renaming the file extension of a CAD drawing in ArcCatalog always appends the original file extension. This results in the CAD drawing possessing two file extensions. For example, attempting to rename ‘buildings.dwg’ to ‘buildings.cad’ results in ‘buildings.cad.dwg’.


This is a known issue.

Solution or Workaround

Use Windows Explorer to rename the file extension of a CAD drawing.