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="Firewall-gestione.png" />
  </query-continue>
  <query>
    <pages>
      <page pageid="60" ns="6" title="File:1899644 10203030685550423 1007163092 o.jpg" />
      <page pageid="96" ns="6" title="File:Cabat-castellosamoggia.png" />
      <page pageid="97" ns="6" title="File:Castellosamoggia-frassino.png" />
      <page pageid="110" ns="6" title="File:Cpe510-wpad-mesh.png" />
      <page pageid="77" ns="6" title="File:DHCP-IP.png" />
      <page pageid="79" ns="6" title="File:DHCP-Lease.png" />
      <page pageid="78" ns="6" title="File:DHCP-Settings.png" />
      <page pageid="66" ns="6" title="File:Dancast78 02 box.jpg" />
      <page pageid="75" ns="6" title="File:EOLO diritto antenna.pdf" />
      <page pageid="72" ns="6" title="File:Emblem-important-2.png" />
    </pages>
  </query>
</api>