A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
I also have just now encountered the same problem,
I have Windows Vista 64-bit.
I hope by explaining how this started in my case, it may help in finding a solution.
In my case, my laptop was closed down / powered off, whilst I was editing an excel
file.
I restarted my laptop, and tried to open excel, the file I was editing was offered
in the recovery portion of the sheet. I attempted to recover, And this failed,
And crashed the excel application.
Thereafter I encounter the problem described.
All excel files I try to open ends up in the Manage - Disabled list and causes
excel to Stop Running, I Re-enable them the same thing happens again.
Hoping this helps..