I haven't heard of that specific problem. The first thing I'd try is an Office repair. I don't expect it to work, but it won't hurt anything and it may work.
Repair or Uninstall Office 2010 / 2007 - http://office.microsoft.com/en-us/excel-help/repair-or-remove-office-2010-HA010357402.aspx?CTT=1
I suspect it is a problem with an addin that is acting up. But there are some trouble shooting procedures for you to try to help pin point the problem:
How to trouble shoot Excel 2000-2007 start up problems http://support.microsoft.com/kb/280504
http://support.microsoft.com/kb/919196
**NOTE:**part of this procedure is disabling addins. If you want to take a shortcut, check to see if you have a BlueTooth addin installed. Various BlueTooth addins have been identified as the cause of problems with many different “random” symptoms. If you
have a BlueTooth add, disable it.
If that doesn't work, then try this more aggressive uninstall (followed by re-install) procedure:
Also uninstall Office Trial editions and any other Office-related programs such as "Office Activation Assistant" and any Office Viewer programs from the Programs applet in Control Panel. But you don't have to
uninstall Office Starter if you have it. Then make sure to reboot TWICE (sorry, I don’t know why, but there appears to be some “Voodoo” at play here. We do it because it works!) after completing repair or uninstall.
How to troubleshoot errors when you save Excel files - http://support.microsoft.com/kb/271513
Opening Corrupt Excel files - http://www.jkp-ads.com/Articles/CorruptFiles.asp
Use a Spare User Account to Trouble shoot Windows Problems -http://www.pcworld.com/article/218437/reader\_qanda\_trouble shoot\_windows\_tweak\_office\_add\_usb\_ports.html?tk=nl\_sbx\_h\_cbstories
Recently a couple readers wrote to me with very similar problems. One was having trouble getting Internet Explorer to run; the other, Windows Explorer.
In other words, a couple of Windows' own built-in tools were broken. (Note to Microsoft: That should
not happen. Come on!)
Usually, for situations like these, I recommend an end-run around the problem. Internet Explorer won't work? Install Firefox or Chrome and use that instead. Can't load Windows Explorer? Switch to any number of even better
Windows Explorer replacements.
Of course, that doesn't really solve the problem. If you're hoping to fix your broken tool, you'll need to do a little trouble shooting. To start, I recommend switching to (or creating) another user account, then seeing if Explorer runs
properly. If it does, you've narrowed down the problem significantly (and should consider "moving" to a new user account permanently). If not, well, back to square one.
Either way, it's a simple method of figuring out how deeply rooted into Windows the problem is. And that will help considerably as you Google-search for an actual fix (assuming there is one--sometimes these things can be resolved only
by reinstalling Windows).Make the Office 2007/2010 Toolbars More Familiar