Import and Export the DXF/DWG cad files in NX_ tutorial

#Import and #Export the DXF/DWG cad files in NX_ tutorial::
in this video have,
- How to import DXF or DWG cad files in NX
-What are the steps need to do while import
-What are the steps need to do while export & etc,.
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[@mohsenchiany6965]

[@ibrahimkuru3910]

When i try to extrude i get "the input section is not valid" error.