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HTML is good for debugging, but is unsuitable for application use.
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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="20160607184708" timestamp="2016-06-07T18:47:08Z" ns="0" title="Statuto" />
        <page value="20160616183407" timestamp="2016-06-16T18:34:07Z" ns="0" title="Paĝoj de la Akademio de Esperanto" />
        <page value="20160629090848" timestamp="2016-06-29T09:08:48Z" ns="0" title="Gerrit Berveling" />
        <page value="20160701153940" timestamp="2016-07-01T15:39:40Z" ns="0" title="Verkoj kaj eldonaĵoj" />
        <page value="20160704082905" timestamp="2016-07-04T08:29:05Z" ns="0" title="Renato Corsetti" />
        <page value="20160704085057" timestamp="2016-07-04T08:50:57Z" ns="0" title="Ma Young-tae" />
        <page value="20160704085554" timestamp="2016-07-04T08:55:54Z" ns="0" title="Amri Wandel" />
        <page value="20160706193204" timestamp="2016-07-06T19:32:04Z" ns="0" title="Numero 27 - Elekto de estraranoj kaj direktoroj - 2016 03 28" />
        <page value="20160706201549" timestamp="2016-07-06T20:15:49Z" ns="0" title="Numero 26 - Elekto de triono de la akademianoj - 2016 02 17" />
        <page value="20160706202247" timestamp="2016-07-06T20:22:47Z" ns="0" title="Numero 25 - Informo pri ŝanĝo en la statuto rilate al la sidejo - 2015 12 15" />
      </results>
    </querypage>
  </query>
</api>