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="20110810155707" timestamp="2011-08-10T15:57:07Z" ns="0" title="Main Page" />
        <page value="20140328153127" timestamp="2014-03-28T15:31:27Z" ns="0" title="國際商情.商情百科(專欄) 相關產業介紹(C0-TW-EDN-AA0038)" />
        <page value="20140328154030" timestamp="2014-03-28T15:40:30Z" ns="0" title="國際商情.商情百科(專欄) 相關產業介紹(C0-TW-EDN-AA0037)" />
        <page value="20140328154531" timestamp="2014-03-28T15:45:31Z" ns="0" title="國際商情.商情百科(專欄) 相關產業介紹(C0-TW-EDN-AA0036)" />
        <page value="20140328155907" timestamp="2014-03-28T15:59:07Z" ns="0" title="國際商情.商情百科(專欄) 相關產業介紹(C0-TW-EDN-AA0035)" />
        <page value="20140328160453" timestamp="2014-03-28T16:04:53Z" ns="0" title="國際商情.商情百科(專欄) 相關產業介紹(C0-TW-EDN-AA0034)" />
        <page value="20140328161120" timestamp="2014-03-28T16:11:20Z" ns="0" title="國際商情.商情百科(專欄) 相關產業介紹(C0-TW-EDN-AA0033)" />
        <page value="20140328173354" timestamp="2014-03-28T17:33:54Z" ns="0" title="國際商情.商情百科(專欄) 相關產業介紹(C0-TW-EDN-AA0032)" />
        <page value="20140328173708" timestamp="2014-03-28T17:37:08Z" ns="0" title="國際商情.商情百科(專欄) 相關產業介紹(C0-TW-EDN-AA0031)" />
        <page value="20140329005337" timestamp="2014-03-29T00:53:37Z" ns="0" title="國際商情.商情百科(專欄) 相關產業介紹(C0-TW-EDN-AA0030)" />
      </results>
    </querypage>
  </query>
</api>