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="20130806171819" timestamp="2013-08-06T17:18:19Z" ns="0" title="Password management" />
        <page value="20130806171819" timestamp="2013-08-06T17:18:19Z" ns="0" title="Internet Communications Security" />
        <page value="20130806171819" timestamp="2013-08-06T17:18:19Z" ns="0" title="Internet Communications Security/Email over SSL" />
        <page value="20130806171819" timestamp="2013-08-06T17:18:19Z" ns="0" title="Resource Kit" />
        <page value="20130806171820" timestamp="2013-08-06T17:18:20Z" ns="0" title="Комплект тренера" />
        <page value="20130806171820" timestamp="2013-08-06T17:18:20Z" ns="0" title="Disk Encryption/Unauthorised File Access" />
        <page value="20130806171820" timestamp="2013-08-06T17:18:20Z" ns="0" title="Password management/Mnemonics" />
        <page value="20130806171820" timestamp="2013-08-06T17:18:20Z" ns="0" title="Опросник участников" />
        <page value="20130806171820" timestamp="2013-08-06T17:18:20Z" ns="0" title="Internet Communications Security/Public Key Encryption" />
        <page value="20130806171820" timestamp="2013-08-06T17:18:20Z" ns="0" title="Internet Communications Security/VoIP" />
      </results>
    </querypage>
  </query>
</api>