X Marks the .doc—An Overview of the Office Open XML File Format

2007 Microsoft® Office system introduces a new XML-based file format called Office Open XML as its default file type. An open, royalty-free standard, Open XML gives developers a wide range of new opportunities, primarily the ability to create and manipulate Office files without using Office. We'll answer the basic questions, and then dive into what Open XML looks like, how it works, and how you can code against it.

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