CI Feed on iTunes

[eluser]sixpack434[/eluser]
Guess what. After weeks of wondering why our feed doesn't show in iTunes we figured out that iTunes won't accept a feed with no extension e.g. www.sitename.com/feed

if it was www.sitename.com/feed.xml or .php it should work

My question is, is there anyway to add the .xml suffix just to the feed page?

Thanks