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An XML file is a text file that stores a heirarchy of 'things' with names and attributes.

THATS IT! nothing more.

if 'heirarchy' is confusing to you, just think of a tree - you have a trunk, with branches, which in turn have sub branches. In XML the base node (the tree's trunk) is known as the 'root' node.

<root>
 <child>
   <subchild>.....</subchild>
 </child>
</root>


Here is an example from w3schools of a note to Tove from Jani, stored as XML:

<note>
    <to>Tove</to>
    <from>Jani</from>
    <heading>Reminder</heading>
    <body>Don't forget me this weekend!</body>
</note>


Here is another example from w3schools with some attributes on the nodes:

<bookstore>
 <book category="COOKING">
   <title lang="en">Everyday Italian</title>
   <author>Giada De Laurentiis</author>
   <year>2005</year>
   <price>30.00</price>
 </book>
 <book category="CHILDREN">
   <title lang="en">Harry Potter</title>
   <author>J K. Rowling</author>
   <year>2005</year>
   <price>29.99</price>
 </book>
 <book category="WEB">
   <title lang="en">Learning XML</title>
   <author>Erik T. Ray</author>
   <year>2003</year>
   <price>39.95</price>
 </book>
</bookstore>

XML is simply a way to store data hierarchically. GunApp weapons are described in XML and GunApp reads this XML to load and play them .

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