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>
    <pages>
      <page pageid="25" ns="6" title="File:CisarNet logo small.png" />
      <page pageid="18" ns="6" title="File:Comitatowifi.jpg" />
      <page pageid="6" ns="6" title="File:Dstar faq.jpg" />
      <page pageid="10" ns="6" title="File:Manual.jpg" />
      <page pageid="35" ns="6" title="File:Node adapter.jpg" />
      <page pageid="15" ns="6" title="File:Poti-ingino.jpg" />
      <page pageid="16" ns="6" title="File:Poti-map.jpg" />
    </pages>
  </query>
</api>