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="Gnome-note.png" />
  </query-continue>
  <query>
    <pages>
      <page ns="6" title="File:Dp 300x250.gif" missing="" />
      <page pageid="1761" ns="6" title="File:BPB01.jpg" />
      <page pageid="6880" ns="6" title="File:Bill Nye pic.jpg" />
      <page pageid="1760" ns="6" title="File:Blackfox-01.jpg" />
      <page pageid="6851" ns="6" title="File:Chehon core building draft.png" />
      <page pageid="6890" ns="6" title="File:Chehon layleaux relative map.png" />
      <page pageid="1782" ns="6" title="File:Cquote1.png" />
      <page pageid="1783" ns="6" title="File:Cquote2.png" />
      <page pageid="1747" ns="6" title="File:Gnome-error.png" />
      <page pageid="1744" ns="6" title="File:Gnome-info.png" />
    </pages>
  </query>
</api>