It's official, Office Open XML is an ISO standardhttp://blogs.technet.com/jamesone/archive/2008/04/02/it-s-official-office-open-xml-is-an-iso-standard.aspxISO have posted the official news to their web site, and the less than inspiring title, " ISO/IEC DIS 29500, Information technology – Office Open XML file formats, has received the necessary number of votes for approval as an ISO/IEC Internationalen-USCommunityServer 2.1 SP1 (Build: 61025.2)