XML returned

If an XML file like this is returned to a browser how it can be turned into a usable XML file like MyFile.xml? Am I thinking about this in the wrong way. I would know how to work with the data with JavaScript or jQuery if the file could be automatically saved somewhere? However I think I may just need to be pointed in the correct direction of how returns like this are accessed. Thanks

Getting it to look more page-like requires associating a style sheet with it.

To use it, it needs to be parsed eg.

A benefit of using PHP is you can do more with it. But it depends on what you’re doing and plan to do with it.