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Microsoft backs an open-source effort to support OpenDocument in Office 2007, as well as earlier versions (up to Office 2000), through a converter add-in for Word, Excel and PowerPoint, and also a command-line utility. [51]
Microsoft Office 2007, Microsoft Office 2010, and Microsoft Office 2013 for Windows use the Office Open XML format as the default. Older versions of Microsoft Office (2000, XP and 2003) require a free compatibility pack provided by Microsoft. [17] It is available for Windows 2000 Service Pack 4 and newer operating systems.
Microsoft Excel 2007, along with the other products in the Microsoft Office 2007 suite, introduced new file formats. The first of these (.xlsx) is defined in the Office Open XML (OOXML) specification.
.xlm – Legacy Excel macro; 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:.xlsx – Excel workbook.xlsm – Excel macro-enabled workbook; same as xlsx but may contain macros and scripts
Besides differences in the schema, there are several other differences between the earlier Office XML schema formats and Office Open XML. Whereas the data in Office Open XML documents is stored in multiple parts and compressed in a ZIP file conforming to the Open Packaging Conventions, Microsoft Office XML formats are stored as plain single monolithic XML files (making them quite large ...
The Excel and Word formats—known as the Microsoft Office XML formats—were later incorporated into the 2003 release of Microsoft Office. Microsoft announced in November 2005 that it would co-sponsor standardization of the new version of their XML-based formats through Ecma International as "Office Open XML".
The Office Open XML format (OOXML), is an open and free document file format for saving and exchanging editable office documents such as text documents (including memos, reports, and books), spreadsheets, charts, and presentations.
An Office Open XML file may contain several documents encoded in specialized markup languages corresponding to applications within the Microsoft Office product line. Office Open XML defines multiple vocabularies using 27 namespaces and 89 schema modules. The primary markup languages are: WordprocessingML for word-processing; SpreadsheetML for ...