Office Open XML (OOXML) is a document description language for Office documents developed by Microsoft and standardized by the European Computer Manufacturers Association (ECMA) and by the International Standards Organization
(ISO) as ISO 29500. OOXML supports office applications through data exchange and file sharing. It is an open XML based file format used in Office 2007. The format is composed of containers consisting of individual documents containing text, tables, formulas, presentation graphics, and drawings in their respective markup languages.