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-continue>
    <querypage qpoffset="10" />
  </query-continue>
  <query>
    <querypage name="Ancientpages">
      <results>
        <page value="20100216204009" timestamp="2010-02-16T20:40:09Z" ns="0" title="Samsung AB483640DE battery pinout" />
        <page value="20100217182534" timestamp="2010-02-17T18:25:34Z" ns="0" title="Nokia BL-5J battery pinout" />
        <page value="20100217201737" timestamp="2010-02-17T20:17:37Z" ns="0" title="Samsung BST4389BE battery" />
        <page value="20100218104841" timestamp="2010-02-18T10:48:41Z" ns="0" title="LG LGTL-GBIP-830 battery pinout" />
        <page value="20100223094959" timestamp="2010-02-23T09:49:59Z" ns="0" title="Samsung AB483640BE battery" />
        <page value="20100223095615" timestamp="2010-02-23T09:56:15Z" ns="0" title="Samsung AB483640BE battery pinout" />
        <page value="20100224095351" timestamp="2010-02-24T09:53:51Z" ns="0" title="Nokia BL-4D battery pinout" />
        <page value="20100224214258" timestamp="2010-02-24T21:42:58Z" ns="0" title="Samsung AB653039CE battery pinout" />
        <page value="20100224230624" timestamp="2010-02-24T23:06:24Z" ns="0" title="Sonyericsson BST-39 battery pinout" />
        <page value="20100302194246" timestamp="2010-03-02T19:42:46Z" ns="0" title="Samsung AB043446BE battery pinout" />
      </results>
    </querypage>
  </query>
</api>