Excel: Windows can not find.... Make sure you typed the name correctly, and then try again.

I have tried these and it works:

• Button Office(top left)
• Excel Options(bottom)
• Advanced(left)
• (right) Search: General
• Remove the check mark from "Ignore other applications that use Dynamic Data Exchange(DDE)".

If not working, see:

http://support.microsoft.com/kb/919196/en-us