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Office File Formats

Office

Office File Formats Protocols

This documentation contains detailed technical specifications for file formats implemented in certain Office applications, including the binary file formats created by Word, Excel, and PowerPoint, and the Outlook Personal Folders (.pst) file format. In addition, the documentation includes a set of companion overview and reference documents that supplement the technical specifications with conceptual background and technical reference information.

Technical specifications for standards-based file formats implemented in Office applications may be found in the Standards Support section of the Open Specifications library.

Although the Open Specifications technical documents are freely available, many of them include patented inventions. Some of these patents are available at no charge under the Open Specifications Promise or the Microsoft Community Promise. The remaining patents are available through various licensing programs. For more information, please visit the Microsoft Open Specifications website or send an email message to the IP Licensing Team.

Pivot

The Open Specifications Interactive Pivot is a visual tool for searching, sorting, packaging, and distributing Open Specifications documents. The technical documents are represented by color-coded tiles that contain title and summary information and link to their respective target documents.

To access the Open Specifications Interactive Pivot, you will need a Silverlight-compatible Windows operating system and browser installed with the most recent version of Microsoft Silverlight. If you still receive an error message to install Silverlight, you may be able to resolve the issue by following the instructions on this Microsoft Support page.

Protocols

Office File Formats Introduction Document

Introduces the persistence formats and identifies related documents and specifications that provide information about how each format is implemented.

Specifications

Office File Formats Technical Documents

Provides detailed technical specifications for file formats implemented in certain Office applications.

Forums

Open Specifications Forums

These MSDN user forums are available to help answer technical questions about the Open Specifications documents.

Blogs

Open Specifications Blogs

These blogs, authored by the engineers who support the Open Specifications documents, provide a different venue for further discussion of those documents.

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