SOLIDWORKS to DXF/DWG Mapping
... and Line Style from the lists. Layers and DEFPOINTS are fixed layers. You cannot edit or delete ...
Import and Export > DXF/DWG Import Wizard
Importing .DXF or .DWG Files
When importing a .dwg or .dxf file as a 2D sketch for a part, you can launch the SOLIDWORKS Repair Sketch tool from the DXF/DWG Import Wizard to fix