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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" />
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  <query>
    <querypage name="Ancientpages">
      <results>
        <page value="20140803155414" timestamp="2014-08-03T15:54:14Z" ns="0" title="Using Eclipse" />
        <page value="20140803183647" timestamp="2014-08-03T18:36:47Z" ns="0" title="Building Source Code" />
        <page value="20140805165632" timestamp="2014-08-05T16:56:32Z" ns="0" title="Configuration file" />
        <page value="20140814035943" timestamp="2014-08-14T03:59:43Z" ns="0" title="ETL scenario language" />
        <page value="20141029183828" timestamp="2014-10-29T18:38:28Z" ns="0" title="Writing data integration and data migration scenarios" />
        <page value="20150208230359" timestamp="2015-02-08T23:03:59Z" ns="0" title="Running ETL Scenarios" />
        <page value="20150208234706" timestamp="2015-02-08T23:47:06Z" ns="0" title="Redistribution and managing dependencies" />
        <page value="20150209134059" timestamp="2015-02-09T13:40:59Z" ns="0" title="Installing and Configuring ETL Framework" />
        <page value="20150210002806" timestamp="2015-02-10T00:28:06Z" ns="0" title="Calling SOAP Web services" />
        <page value="20150210004356" timestamp="2015-02-10T00:43:56Z" ns="0" title="Calling REST based Web services" />
      </results>
    </querypage>
  </query>
</api>