I am exporting linework from Rhino 6 as a dxf file and beginning today, every time I try to open a DXF file, illustrator stops responding and eventually crashes. Everytime this happens, I have to force close it. I was using the most recent version of Illustrator. I've reverted back to different versions to see if it helps, but everything still crashes. I have uninstalled and reinstalled completely and nothing is working. I am an architecture student and I have a midterm next week so I am completely lost on what to do.