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>
    <allpages>
      <p pageid="3" ns="0" title="CNC Building" />
      <p pageid="4" ns="0" title="CNC Rebuilding" />
      <p pageid="5" ns="0" title="Green Power - Wind Generator Building" />
      <p pageid="932" ns="0" title="Harley WLC Flathead" />
      <p pageid="875" ns="0" title="Harley flathead/WLC/45 Bobber project" />
      <p pageid="1" ns="0" title="Main Page" />
      <p pageid="12" ns="0" title="OSD Building" />
      <p pageid="11" ns="0" title="RC Flying Wing Building" />
      <p pageid="13" ns="0" title="RC Motor controller Building" />
      <p pageid="10" ns="0" title="RC Submarine Building" />
    </allpages>
  </query>
  <query-continue>
    <allpages apfrom="SMS Alarm/IO unit Building" />
  </query-continue>
</api>