http://blogs.msdn.com/excel/archive/2008/04/02/office-open-xml-a-k-a-is-29500.aspxAs everyone who has followed this blog already knows, we introduced a new file format with Office 2007 (and Excel 2007) with the extension .xlsx called Office Open XML (OOXML). Microsoft submitted the new file format to Ecma International, and in Decemberen-USCommunityServer 2.1 SP1 (Build: 61025.2)http://blogs.msdn.com/excel/archive/2008/04/02/office-open-xml-a-k-a-is-29500.aspx#8645690Tue, 24 Jun 2008 08:09:43 GMT91d46819-8472-40ad-a661-2c78acb4018c:8645690Office Open XML, aka IS 29500 - Learn Excel<p>PingBack from <a rel="nofollow" target="_new" href="http://exceltutoriales.com/?p=667">http://exceltutoriales.com/?p=667</a></p>