Office Open XML Converter
Download Office Open XML Converter 0.2.1 for Mac from our website for free. The default filename for the application's installer is OpenXMLConverter118.dmg. This free software for Mac OS X is an intellectual property of Microsoft. The following versions: 1.1 and 0.2 are the most frequently downloaded ones by the program users. The program is included in Design & Photo Tools. This app's bundle is identified as com.microsoft.OfficeConverter.
From the developer:
Office Open XML Converter allows you to convert Open XML files that were created in Office 2008 for Mac so that you can open, edit, and save them in earlier versions of Office for Mac.
You may want to check out more software for Mac, such as Java XML Converter, XPS-Converter-Lite or 4th Office, which might be similar to Office Open XML Converter.