||Trouble opening Microsoft
Office 2007 Documents with Microsoft 2003?
That's because you can't.
Microsoft Office 2007 documents can only be opened and viewed
within the Microsoft Office 2007 environment (software downloaded
on your computer) or the Compatibility 0
the Compatibility Pack in addition to Microsoft Office 2000,
Office XP, or Office 2003, you will be able open, edit,
and save files using the file formats new to Word, Excel,
and PowerPoint 2007. The Compatibility Pack can also be
used in conjunction with the Microsoft Office Word Viewer
2003, Excel Viewer 2003, and PowerPoint Viewer 2003 to view
files saved in these new formats.