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Ecma Office Open XML File Formats Standard - Intermediate draft 1.4 - 23rd of August 2006

The Ecma International Technical Committee (TC45) is working to establish a standard for Office Open XML File Formats as described in the TC45 program of work at The work is in progress, and the participants in Ecma TC45 are providing the reference schema and specification as working documents, for informational purposes only. The contents are subject to change, and may change monthly. To participate in the standardization process, contact your organization's Ecma representative. If your company does not currently participate in Ecma and wants to do so, please contact Ecma ( directly. If you wish to provide focused feedback, you will be most welcome to send your comments/contribution to a special e-mail address after registration and acceptation of legal terms. This e-mail address is available at this link

There is also a technical forum at for developers who are interested in using the Ecma Office Open XML file formats.

The following organizations have participated in the work of Ecma TC45 and their contributions are gratefully acknowledged:

Apple, Barclays Capital, BP, The British Library, Essilor, Intel, The Library of Congress, Microsoft, NextPage, Novell, Statoil, and Toshiba

Available Documents:

The 1.4 draft of the Office Open XML Format standard has been broken into separate parts, as follows:

The 1.4 working draft is also available using the WordprocessingML schema as defined in the 1.4 working draft:

Reference Schemas from working draft 1.3:

See the complete list of XSD schema files for the 1.3 working draft Office Open XML Formats.




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