You are looking at the HTML representation of the XML format.
HTML is good for debugging, but probably is not suitable for your application.
Please see "format" parameter documentation at the API help for more information.
<?xml version="1.0" encoding="utf-8"?>
<api>
  <query-continue>
    <allpages gapfrom="TTF Load" />
  </query-continue>
  <query>
    <pages>
      <page pageid="1561" ns="0" title="TRUE" touched="2007-07-17T09:37:25Z" lastrevid="2647" />
      <page pageid="2253" ns="0" title="TTF.DLL" touched="2008-02-29T13:00:01Z" lastrevid="4408" redirect="" />
      <page pageid="2255" ns="0" title="TTF Changelog" touched="2008-03-10T16:59:02Z" lastrevid="4387" />
      <page pageid="1409" ns="0" title="TTF DLL" touched="2008-02-28T12:21:38Z" lastrevid="4398" redirect="" />
    </pages>
  </query>
</api>