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>
    <querypage name="Ancientpages">
      <results>
        <page value="20070313230932" timestamp="2007-03-13T23:09:32Z" ns="0" title="Jabberd" />
        <page value="20070317164153" timestamp="2007-03-17T16:41:53Z" ns="0" title="PHP cant send mail" />
        <page value="20070324183719" timestamp="2007-03-24T18:37:19Z" ns="0" title="Joomla notes" />
        <page value="20070324184808" timestamp="2007-03-24T18:48:08Z" ns="0" title="ASL vmware" />
        <page value="20070324184917" timestamp="2007-03-24T18:49:17Z" ns="0" title="Middle mouse button in firefox" />
        <page value="20070324185031" timestamp="2007-03-24T18:50:31Z" ns="0" title="1and1 rh9 notes" />
        <page value="20070324202916" timestamp="2007-03-24T20:29:16Z" ns="0" title="Remote Query of Local Groups" />
        <page value="20070326165323" timestamp="2007-03-26T16:53:23Z" ns="0" title="Vulnerable linux" />
        <page value="20070328182130" timestamp="2007-03-28T18:21:30Z" ns="0" title="Using a deprecated SCSI ioctl" />
        <page value="20070412162957" timestamp="2007-04-12T16:29:57Z" ns="0" title="Bootable RAID" />
      </results>
    </querypage>
  </query>
  <query-continue>
    <querypage qpoffset="10" />
  </query-continue>
</api>