if you get excel crash with message in event viwer like:

Faulting application excel.exe, version 11.0.8237.0,12.0.x.x stamp xxxxx,
faulting module mso.dll, version 11.0.8221.0,12.0.x.x stamp xxxxxxxxx, debug? 0, fault
address 0x000d8d11.

Try doing the following:
1. start > run > regedit
2. Go to key:

3. change the key LoadBehavior from 3 to 0
4. exit regedit.
5. restart Excel