Foreword
This multi-part Standard deals with Office Open XML Format-related technology, and consists of the following parts:
Part 1: "Fundamentals"
Part 2: "Open Packaging Conventions"
Part 3: "Primer"
Part 4: "Markup Language Reference" (this document)
Part 5: "Markup Compatibility and Extensibility"
This part, Part 4, includes a number of annexes that refer to data files provided in electronic form only.