Microsoft has released a beta verison of a converter for the new format of Office 2007 documents, to allow them to be opened in Mac versions of Office (most recent patched versions of MS Office 10 and 11 for OS X). It’s not perfect, and it needs 10.4.8 Mac OS X, but it might be helpful to some. See Microsoft Office Open XML File Format Converter for Mac (Beta).
Greenflame
Jottings on science, religion, technology, pop culture, photography and faith from the Aotearoa New Zealand