Microsoft Office Open XML File Format Converter for Mac

"With the Office Open XML Converter, you can convert Office Open XML files to a format that is compatible with Microsoft Office 2004 for Mac and Microsoft Office v. X for Mac. You can choose to convert and open one file, or convert a large number of files... This version [currently 0.2 Beta] of the converter can convert the following Office Open XML file formats:

  • Word Document (*.docx)
  • Word Macro-Enabled Document (*.docm)
  • PowerPoint Presentation (*.pptx)
  • PowerPoint Show (*.ppsx)
  • PowerPoint Template (*.potx)"