This has happened to me a few times before, OK SW has bugs but this is a real pain. I have a file with about 100 configs in it. If worked fine the day before but some where along the way it decided to give me an error when I try to open it. I've tried it on a machine with excel 2000 and another machine with 2003. Both give the same error. "Unable to open design table using Excel 200X" In the past my VAR actually said to recreate the file. Has anyone else had this?