Microsoft confirms Office SP2 can't read Win-created files
Wednesday, July 29, 2009
Microsoft is recommending that Office 2008 users who upgraded Service Pack 2 should remove it and roll back to an earlier version. The update, released last week, disables Office for Mac applications' ability to open files in the Open XML format (.docx, .xlsx, .pptx) created by Office 2007 for Windows. Microsoft offers these options, amoung others:
Remove Office manually, reinstall Microsoft Office 2008 for Mac from the original installation media, and then upgrade to Office 2008 for Mac 12.1.9 Update. Do not upgrade to Microsoft Office 2008 for Mac Service Pack 2 (12.2.0) from Microsoft AutoUpdate
You seem to be quoting from something, but I'm not sure what you're quoting from. Can you provide a citation?
Regardless, let me clarify what is happening, since this statement isn't accurate.
We have an issue where a very small number of users are unable to open some XML-based files. It is emphatically not the case that Office:Mac users are unable to open all files that were created by Office 2007 for Windows.
The vast majority of users aren't impacted by this -- if they were, this thread would have rather different content.

In this thread, there's only been one person who has commented on it, and I haven't noticed any other threads on MacRumors where users have run into this issue.
Most of the users who are impacted by this issue are able to open some, but not all, of the files that were saved in the new XML-based file format. We're actively working on fixing it right now.
If you have XML-based files (.pptx, .xlsx, .docx, etc) that you are unable to open, please PM me. If possible (and I know that it isn't always possible, if your files have personal or confidential information in them), I'd like to get a copy of any affected files that you might have. Additionally, please send me as many details as you can about the lineage of the file: which version of PowerPoint/Excel/Word was used to create the file, any versions of PowerPoint/Excel/Word that were used to edit the file, whether the file has ever been edited by third-party applications, whether you had originally saved the file in the old binary format (.ppt, .xls, .doc) and then converted to the new XML-based format, etc.
If you are impacted by this issue, there are a few workarounds that you can try so that you can access your documents. We're actively working on a fix and working on getting it out as soon as we possibly can, but of course we want you to be able to get to your documents in the interim. The article above suggests uninstalling, reinstalling, and only patching up to 12.1.9 and not installing SP2 until we have a fix. That is the last resort. For other potential solutions, check out our help topic
here.
As always, if you have any questions about this, feel free to respond to this thread, PM me, or contact me via
twitter.
Regards,
Nadyne.