You are looking at the HTML representation of the XML format.
HTML is good for debugging, but is unsuitable for application use.
Specify the format parameter to change the output format.
To see the non HTML representation of the XML format, set format=xml.
See the complete documentation, or API help for more information. 
<?xml version="1.0"?>
<api>
  <query-continue>
    <alllinks galcontinue="CNC_Mill" />
  </query-continue>
  <query>
    <pages>
      <page pageid="68" ns="0" title="Backpacking" />
      <page pageid="7" ns="0" title="Badlands Rifle" />
      <page pageid="107" ns="0" title="Battery" />
      <page pageid="108" ns="0" title="Battery Charger" />
      <page pageid="109" ns="0" title="Battery Conductor" />
      <page pageid="55" ns="0" title="Beginners Playing Guide" />
      <page pageid="290" ns="0" title="Bounty Board" />
      <page pageid="160" ns="0" title="Buckshot Ammo" />
      <page pageid="272" ns="0" title="Bugs and Suggestions" />
      <page pageid="305" ns="0" title="Building Cars" />
    </pages>
  </query>
</api>