By default, documents created in the next release of the Microsoft Office system of products will be based on new, XML-based file formats. These new formats are distinct from the binary-based file format that has been a mainstay of past Microsoft Office releases. The new Office XML Formats introduce a number of benefits that will accrue not only to developers and the solutions they build, but also to individual users and organizations of all sizes.

Included in this document:

• Summary
• Introducing the Ecma Office Open XML Formats
• File Structure
• Solution Development
• Conclusion
• References

For more information

Frequently asked questions
File Format information guide

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