Office Schemas – XML Schema
This Office Open XML specification includes a family of schemas defined using the XML Schema 1.0 syntax. The normative definitions of these schemas reside in an accompanying file named OfficeOpenXML-XMLSchema.zip, which is distributed in electronic form only.
If discrepancies exist between the electronic version of a schema and its corresponding representation as published in this part, Part 4, the electronic version is the definitive version.