Office Open XML

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Office Open XML

An XML-based file format developed by Microsoft and standardized by ECMA (ECMA 376). It is the default document format for saving applications in Microsoft Office starting with Office 2007. See Office file formats.

A Package of Folders and Files
An Office Open XML (OOXML) document is a zipped collection of folders, subfolders, XML files and other file types, which is a huge contrast from previous Microsoft Office and traditional business file formats. One advantage of the Office Open XML structure is that various parts of the document can be edited more easily because they reside in separate files.

For comparison, following are the file structures created in both the traditional Word format (Word 2003 and prior) and Word Open XML format (starting with Word 2007). The two examples depict a simple document with one picture saved with the name RESUME.

 #1 - TRADITIONAL WORD DOCUMENTresume.doc (one file)


 #2 - OFFICE OPEN XML WORD DOCUMENTresume.docx (one file, which is a
               zipped collection of the
               following folders & files)


 _rels FOLDER
     .rels (RELationshipS; pointers to
             app, core and document
             XML files)

 docProps FOLDER
     app.xml (page characteristics)
     core.xml (authorship, versions)

 word FOLDER
     document.xml (text content)
     fontTable.xml (fonts)
     settings.xml (spelling, grammar,
                    math, spacing)
     styles.xml (paragraph styles)
     webSettings.xml (browser attributes)

     _rels SUBFOLDER
         document.xml.rels (pointers to
                            other files)

     media SUBFOLDER
         image1.jpeg (embedded image)

     theme SUBFOLDER
         theme1.xml (foreign language
                       attributes)
References in periodicals archive ?
XML is now poised to consolidate its position as the dominant format for high value business data according to Dr Alex Brown, director of Griffin Brown, an industry data quality specialist and convenor of the ISO/IEC DIS 29500 Ballot Resolution Process.
ISO/IEC DIS 29500 was originally developed as the Office Open XML Specification by Microsoft Corporation which submitted it to Ecma International, an information technology industry association, for transposing into an ECMA standard and subsequently published as ECMA standard 376.
4 /PRNewswire-FirstCall/ -- Today the International Organization for Standardization (ISO) released the results of the preliminary ballot to participating National Body members for the ISO/IEC DIS 29500 (Ecma 376 Office Open XML file formats) ratification process.
The ISO/IEC Information Technology Task Force (ITTF) issued the 5-month DIS 29500 (Office Open XML) ballot on Monday, April 2, 2007; the ballot will close on Sept 2, 2007.