Microsoft has added the a Visio 2003 XML schema to the list of Office schemas that it has published. The reference can be downloaded directly from the Microsoft Download Center.
This download contains the Microsoft Office 2003 XML Reference Schemas and related documentation and now includes:
* Overview articles on WordprocessingML (the XML file format for Microsoft Office Word 2003), SpreadsheetML (Microsoft Office Excel 2003), FormTemplate XML schemas (Microsoft Office InfoPath 2003) and DataDiagramingML (Microsoft Office Visio 2003).
* Reference documentation on the Microsoft Office 2003 schemas, detailing every element and types.
