Office Open XML

<p>Office Open XML (also informally known as OOXML) is a <a href="/facts/ZIP_(file_format)/qDrrYIB9">zipped</a>, <a href="/facts/XML/clNgUfWk">XML</a>-based <a href="/facts/File_format/qrXbwJaH">file format</a> developed by <a href="/facts/Microsoft/nGIDDXdx">Microsoft</a> for representing <a href="/facts/Spreadsheet/0cvc1GeB">spreadsheets</a>, <a href="/facts/Chart/2xshvBX0">charts</a>, <a href="/facts/Presentation/InRKd0W2">presentations</a> and <a href="/facts/Word_processing/qAR7lagF">word processing</a> documents. <a href="/facts/Ecma_International/HCbnIU6n">Ecma International</a> standardized the initial version as ECMA-376. <a href="/facts/International_Organization_for_Standardization/IacYR7Yg">ISO</a> and <a href="/facts/International_Electrotechnical_Commission/hSK0kjwI">IEC</a> standardized later versions as ISO/IEC 29500.
</p><p><a href="/facts/Microsoft_Office_2010/BnBCXStu">Microsoft Office 2010</a> provides read support for ECMA-376, full support for ISO/IEC 29500 Transitional, and read support for ISO/IEC 29500 Strict.  <a href="/facts/Microsoft_Office_2013/l0RenlNG">Microsoft Office 2013</a> and later fully support ISO/IEC 29500 Strict, but do not use it as the default file format because of backwards compatibility concerns.
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Office Open XML open-in-new

Office Open XML