New Office extension

Hey guys,
This just came to my attention so I thought I'd mention it as a heads up - if you've built anything that takes uploads, and you check the extension, you might want to account for the new Office extensions (docx, pptx, etc).

UPDATE:

The server needed some configuring so that one's browser could handle these new Office 2007 extensions (see this article). Don has handled it but just a heads up if you ever encounter that links to these extension don't work, this might be the culprit.