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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.
See the complete documentation, or API help for more information. 
<?xml version="1.0"?>
<api>
  <query-continue>
    <querypage qpoffset="10" />
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  <query>
    <querypage name="Ancientpages">
      <results>
        <page value="20120613143041" timestamp="2012-06-13T14:30:41Z" ns="0" title="WinClone" />
        <page value="20120613143511" timestamp="2012-06-13T14:35:11Z" ns="0" title="Cached password in Windows non-domain PCs" />
        <page value="20120613143739" timestamp="2012-06-13T14:37:39Z" ns="0" title="Thunderbird folder problems" />
        <page value="20120614114428" timestamp="2012-06-14T11:44:28Z" ns="0" title="How to get Matlab to work on Ubuntu 11.04" />
        <page value="20120614114438" timestamp="2012-06-14T11:44:38Z" ns="0" title="How to transfer files from one Linux system to another" />
        <page value="20120614114527" timestamp="2012-06-14T11:45:27Z" ns="0" title="Labs" />
        <page value="20120614131816" timestamp="2012-06-14T13:18:16Z" ns="0" title="Running wine on linuxgrid" />
        <page value="20120614132317" timestamp="2012-06-14T13:23:17Z" ns="0" title="Systemarbejde 2012-06-27" />
        <page value="20120618135648" timestamp="2012-06-18T13:56:48Z" ns="0" title="Create Status and News" />
        <page value="20120625110852" timestamp="2012-06-25T11:08:52Z" ns="0" title="Running dropbox on central servers" />
      </results>
    </querypage>
  </query>
</api>