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>
    <querypage qpoffset="10" />
  </query-continue>
  <query>
    <querypage name="Ancientpages">
      <results>
        <page value="20070126212230" timestamp="2007-01-26T21:22:30Z" ns="0" title="Documentation of MIPAV contributions by Geometric Tools" />
        <page value="20080407172304" timestamp="2008-04-07T17:23:04Z" ns="0" title="Subversion topics" />
        <page value="20081016181507" timestamp="2008-10-16T18:15:07Z" ns="0" title="Crontab notes" />
        <page value="20090323183112" timestamp="2009-03-23T18:31:12Z" ns="0" title="Supported utilities" />
        <page value="20090323192859" timestamp="2009-03-23T19:28:59Z" ns="0" title="VOIs" />
        <page value="20090323200329" timestamp="2009-03-23T20:03:29Z" ns="0" title="Image overlays and composites" />
        <page value="20090323201409" timestamp="2009-03-23T20:14:09Z" ns="0" title="3-D Surface Views" />
        <page value="20090325184230" timestamp="2009-03-25T18:42:30Z" ns="0" title="MIPAV change list 3.x.x" />
        <page value="20090325184300" timestamp="2009-03-25T18:43:00Z" ns="0" title="MIPAV change list 2.x" />
        <page value="20090325184348" timestamp="2009-03-25T18:43:48Z" ns="0" title="MIPAV change list 1.xx" />
      </results>
    </querypage>
  </query>
</api>