Office Open XML
Sign in to saveAlso known as OOXML, OpenXML
family of document file formats mostly known for use with Microsoft Office 2007 and newer
Key facts
- Filename extension
- .docx, .docm
- Internet media type
- application/vnd., openxmlformats-officedocument., wordprocessingml., document
- Developed by
- Microsoft , Ecma , ISO , IEC
- Initial release
- 7 December 2006 ; 19 years ago ( 2006-12-07 )
- Latest release
- 4th edition, 26 October 2016 ; 9 years ago ( 2016-10-26 )
- Type of format
- Document file format
- Extended from
- XML , DOC , WordProcessingML
- Standard
- ECMA-376, ISO/IEC 29500
- Open format
- Yes
- Website
- ECMA-376 , ISO/IEC 29500-1:2016
via Wikipedia infobox
~13 min read
Encyclopedic overview
Office Open XML (also informally known as OOXML) is a zipped, XML-based file format developed by Microsoft for representing spreadsheets, charts, presentations and word processing documents. Ecma International standardized the initial version as ECMA-376. ISO and IEC standardized later versions as ISO/IEC 29500.
Microsoft Office 2010 provides read support for ECMA-376, full support for ISO/IEC 29500 Transitional, and read support for ISO/IEC 29500 Strict. Microsoft Office 2013 and later fully support ISO/IEC 29500 Strict, but do not use it as the default file format because of backwards compatibility concerns.
Excerpted from Wikipedia’s “Office Open XML” article, available under the CC BY-SA 4.0 licence.