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>
    <allpages apcontinue="K65_Tutorial_1" />
  </query-continue>
  <query>
    <allpages>
      <p pageid="29" ns="0" title="Creating new map" />
      <p pageid="22" ns="0" title="Dreadtool" />
      <p pageid="4" ns="0" title="K65" />
      <p pageid="21" ns="0" title="K65 Changelog" />
      <p pageid="18" ns="0" title="K65 Downloads" />
      <p pageid="17" ns="0" title="K65 Evaluator" />
      <p pageid="2" ns="0" title="K65 Instructions" />
      <p pageid="3" ns="0" title="K65 Known Bugs" />
      <p pageid="10" ns="0" title="K65 Syntax" />
      <p pageid="20" ns="0" title="K65 To Do" />
    </allpages>
  </query>
</api>