http://blogs.msdn.com/brian_jones/archive/2005/08/10/450190.aspxJerry Dunietz is now up on Channel 9 talking about the XML Paper Specification. They use ZIP in a similar way to how we use it in Office to store our XML files. In fact, the APIs that they release for parsing through the contents of their packages (files)en-USCommunityServer 2.1 SP1 (Build: 61025.2)http://blogs.msdn.com/brian_jones/archive/2005/08/10/450190.aspx#453326Fri, 19 Aug 2005 02:28:38 GMT91d46819-8472-40ad-a661-2c78acb4018c:453326Jo&quot;anyone can actually come along that is building an application and leverage the container conventions for their formats. It's all just ZIP and XML so it's pretty straightforward.&quot; <br> <br>It sounds very simple, I like this comment!