Hosting xml files on Webserver

I have a website and I have a game with the loading and saving system in xml.

Since my game is a fully online game with stats and other things that could maybe be tampered with I want to have all the players data stored in the xml files to be on my website.

How would I go about this so that the game would still be able to find the files even if they are not on the clients machine?


~Joseph-Jonathan