This document provides an overview of Office Open XML (OOXML) and how it can be used with XML tools. It discusses how OOXML is the native XML format for Microsoft Office 2007 applications, and how this format can be queried, transformed, and manipulated using XML tools like XQuery. It provides examples of exploring OOXML documents, loading them into a content server, querying the XML, and packaging the files back into the OOXML format. The document concludes that OOXML provides the building blocks for integrated content applications based on desktop content which can be enabled through XML content servers.