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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.
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<?xml version="1.0"?>
<api>
  <query-continue>
    <querypage qpoffset="10" />
  </query-continue>
  <query>
    <querypage name="Ancientpages">
      <results>
        <page value="20060201202400" timestamp="2006-02-01T20:24:00Z" ns="0" title="Invasive Arten:Beispiel1" />
        <page value="20061120110514" timestamp="2006-11-20T11:05:14Z" ns="0" title="GNU Freie Dokumentationslizenz" />
        <page value="20090219230211" timestamp="2009-02-19T23:02:11Z" ns="0" title="Pandora" />
        <page value="20090313151809" timestamp="2009-03-13T15:18:09Z" ns="0" title="Strongylognathus" />
        <page value="20090916154629" timestamp="2009-09-16T15:46:29Z" ns="0" title="Ameisenbisse" />
        <page value="20100202213712" timestamp="2010-02-02T21:37:12Z" ns="0" title="Erste Schritte nach dem Fang einer Königin" />
        <page value="20100226121158" timestamp="2010-02-26T12:11:58Z" ns="0" title="Chalepoxenus" />
        <page value="20100226121324" timestamp="2010-02-26T12:13:24Z" ns="0" title="Tyrannomyrmex" />
        <page value="20100226121839" timestamp="2010-02-26T12:18:39Z" ns="0" title="Manica" />
        <page value="20100605173454" timestamp="2010-06-05T17:34:54Z" ns="0" title="Warum Camponotus ligniperda jetzt C. ligniperdus heißt" />
      </results>
    </querypage>
  </query>
</api>