How do I convert a .docx file on a Mac OS X

By default, Office 2007 saves documents in a new XML format (.docx). Please follow the link below to download a widget that allows users to convert files straight from the MAC OS X desktop. 
 DOCX Converter 
 Have fun! 
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 For best compatibility across versions of Microsoft Office, it is best to change the default file format to NOT save as Office XML . 
 Microsoft’s official converter from pre-MacOffice 2008 versions is Open XML File Format Converter for Mac : http://go.microsoft.com/fwlink/?LinkId=164915