Reading From XML instead of database?

[eluser]saidbakr[/eluser]
Hello,

I need to know how reading a local, or remote, server xml file and using its data instead of database? For example,

Code:

<xml>
<item>
<item_id>1</item_id>
<item_title>First title</item_title>
<item_content>First one content blah blah..</item_content>
<item_author>John Loe</item_author>
</item>
<item>
<item_id>2</item_id>
<item_tite>and so on....

How could I use CI to read this XML file? and what are suitable to do this task, a helper or a plugin? and where could I able to find pre-made such plugins and helpers for CI?