How do I convert an .xml to a LayOut documetnt?

[redinhawaii]

I am on a mac and a google tech helped me with a document issue. great, but the file I received back was in a .xml format, I do not know what I have to do to open this file?
any ideas?
Mac OSX 10.5, LayOut 2,
aloha
red

[Gaieus]

Put the files (and folders) into a *.zip archive and rename the *.zip extension to *.layout.

[redinhawaii]

Nice concept but I am doing something wrong as I get this message.