List of Microsoft Office filename extensions

Last updated

The following is a list of filename extensions used by programs in the Microsoft Office suite.

Contents

Word

Legacy
Legacy filename extensions denote binary Microsoft Word formatting that became outdated with the release of Microsoft Office 2007. Although the latest version of Microsoft Word can still open them, they are no longer developed. Legacy filename extensions include:
OOXML
Office Open XML (OOXML) format was introduced with Microsoft Office 2007 and became the default format of Microsoft Word ever since. Pertaining file extensions include:

Other formats

Excel

Legacy
Legacy filename extensions denote binary Microsoft Excel formats that became outdated with the release of Microsoft Office 2007. Although the latest version of Microsoft Excel can still open them, they are no longer developed. Legacy filename extensions include:
OOXML
Office Open XML (OOXML) format was introduced with Microsoft Office 2007 and became the default format of Microsoft Excel ever since. Excel-related file extensions of this format include:
Other formats
Microsoft Excel uses dedicated file formats that are not part of OOXML, and use the following extensions:

PowerPoint

Legacy

OOXML

Access

Microsoft Access 2007 introduced new file extensions:

Other

OneNote

Outlook

Publisher

See also

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References

  1. "Excel 2007 XLL Software Development Kit Documentation". MSDN . Microsoft . Retrieved 4 June 2013.