Microsoft has released Office 2008 for Mac 12.2.1 Update which, according to Microsoft, offers “improvements for all Microsoft Office 2008 for Mac applications.”
Microsoft’s release notes state:
Compatibility is improved. This update fixes an issue that causes Office 2008 for Mac to display an error message that resembles the following:
“Microsoft Excel cannot open the file. You may have to download the latest updates for Office for Mac.
Do you want to visit the Microsoft Web site for more information?”
This issue occurs when you try to open documents that have one of the file types that are listed in the following table:

More info and download link here.
MacDailyNews Take: Do you really need Microsoft Office? Give Apple’s free 30-day iWork ’09 trial a try and find out for yourself.
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