http://www.microsoft.com/downloads/details.aspx?familyid=4D951911-3E7E-4AE6-B059-A2E79ED87041&displaylang=en
Included in Office 2007 SP2, which now has full support for Open Document Format! It will finally open documents from OpenOffice!!!
Office 2007 SP2:
http://www.microsoft.com/downloads/details.aspx?FamilyID=b444bf18-79ea-46c6-8a81-9db49b4ab6e5&displaylang=en
