After testing on 3 other workstations, 2 of the other workstations exported fine, one other had the same error as mine. I am the only one that is running Excel 2007, the other 3 are running Excel 2010.

This happens when exporting from Gridview as well, which has made one of the GV reports we had custom built for us inaccurate and unusable.

Any suggestions are appreciated.