You are looking at the HTML representation of the XML format.
HTML is good for debugging, but probably is not suitable for your application.
See complete documentation, or API help for more information. 
<?xml version="1.0"?>
<api>
  <query-continue>
    <allimages gaifrom="IDuino Schematic.GIF" />
  </query-continue>
  <query>
    <pages>
      <page pageid="9" ns="6" title="File:Arduino Com diagram.jpg" />
      <page pageid="11" ns="6" title="File:Arduino com circuit.jpg" />
      <page pageid="8" ns="6" title="File:Arduino com pic 1.jpg" />
      <page pageid="12" ns="6" title="File:Arduino serial monitor.png" />
      <page pageid="10" ns="6" title="File:Arduino thermistor.jpg" />
      <page pageid="32" ns="6" title="File:Carcopter.jpg" />
      <page pageid="51" ns="6" title="File:Curtiss V-8 Motorcycle.jpg" />
      <page pageid="41" ns="6" title="File:DS1307 pin out.jpg" />
      <page pageid="52" ns="6" title="File:Dodge Tomahawk.jpg" />
      <page pageid="118" ns="6" title="File:Ds1307 schematic.jpg" />
    </pages>
  </query>
</api>