If I save a file as a .dft, and also as a .dwg, I am no longer able to open the .dft, because I last saved as .dwg. I can view the drawing in .dwg but cannot change anything. How do I open the .dft file?
What are you doing to try to open the files?
Saving a file as .dwg has nothing to do with a file saved as .dft. These are totally separate files.
What do you mean by view the drawing in .dwg? Are you opening the file again in 2D Drafting?