If you haven't signed the No Open Office XML Petition yet, hurry over and do it right now. Microsoft's efforts to ratify their file formats as a standard must be stopped not just because there's already an Open Document format standard, but because their implementation is flawed and broken and adopting it will cause all kinds of problems and the eventual destruction of the world as we know it.
For the reasons why and to sign the partition go to http://www.noooxml.org/petition.
Ruben Schade, Singapore, 54 seconds ago
Comments: This newly proposed “standard” being pushed (and bribed) by Microsoft is a genuine threat to interoperability and must be dismissed. Microsoft, a convicted monopolist in multiple jurisdictions must NOT be allowed under any circumstances to push through these file formats.