Citing statements of support from more than 300 companies and organizations, Microsoft claimed on Tuesday that interest in its Office Open XML file format continues to grow. Comments backing the ...

Is Microsoft’s Open XML document standard “so complex and so geared towards compatibility with legacy Office compatibility that it could never be implemented as a fully functional file format ...

Sun believed that the Extensible Markup Language (XML) format used for OpenOffice documents could make a general open standard for office application files, and submitted it to the Organization ...

A file with the XLSX file extension is a Microsoft Excel Open XML Format Spreadsheet file. It's a ZIP-compressed, XML-based spreadsheet file created by Microsoft Excel version 2007 and later.

Opponents of Open XML, which is the default file-saving format in Microsoft Office 2007, say there is no need for a rival standard to the widely used Open Document Format (ODF) that is already an ...

ODF developers are still working on the 1.4 release of the popular, open file format for productivity applications, but Microsoft is already adding support for the technology ...