I’m using 7. I have just run the recover3dmfile command and managed to get all the geometry into a new file (other than the SubD multipipe surfaces which weren’t recovered - these were the last things I was working on before the final save - maybe they were the issue?)
The issue occurred with two files, my two most recent, both over 1GB, but rhino opened other files fine. Weird as neither will open but they are both different files? Luckily I have been able to recover the geometry I needed (even if everything is on one layer now!)
As I can’t get into that original file - should i post the system info from this new working file?
Thanks for the speedy reply!