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 ...

What to Know An XLSX file is a Microsoft Excel Open XML Format Spreadsheet file. Open one with Excel, Excel Viewer, Google Sheets, or another spreadsheet program.

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 ...

Making good on an earlier promise, Novell has posted an Open XML translator for the OpenOffice.org productivity suite, adding Microsoft Office 2007 file format capability to the open-source ...

Property lists are essentially XML files with a .plist extension. Here's how to edit them using the command line in the macOS Terminal app.