Open XML File Format – create a Word 2007 doc from scratch

I ran across Doug Mahugh Blog and he has some great pointers and resources for information on Open XML file formats for Excel 2007 and Word 2007.

• Erika Ehrli paper entitled "Walkthrough: Word 2007 XML Format It provides an overview of the Open Packaging Convention, parts, relationships, content types, the custom XML data store, and an example of how to create a WordprocessingML document from the ground up.
• Create CreateXlsx sample program - Excel 2007