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="20130718130114" timestamp="2013-07-18T13:01:14Z" ns="0" title="Se optar pela instalação manual da máquina virtal Java" />
        <page value="20130718131609" timestamp="2013-07-18T13:16:09Z" ns="0" title="Configurações básicas pós instalação" />
        <page value="20130718131945" timestamp="2013-07-18T13:19:45Z" ns="0" title="Login automático" />
        <page value="20130718132032" timestamp="2013-07-18T13:20:32Z" ns="0" title="Facilidades do google" />
        <page value="20130718132157" timestamp="2013-07-18T13:21:57Z" ns="0" title="Softwares Correlatos" />
        <page value="20130718132351" timestamp="2013-07-18T13:23:51Z" ns="0" title="Plug-in de exportação do aplicativo TEDE para DSpace" />
        <page value="20130718134042" timestamp="2013-07-18T13:40:42Z" ns="0" title="Bvt" />
        <page value="20130718143317" timestamp="2013-07-18T14:33:17Z" ns="0" title="Template" />
        <page value="20130718143324" timestamp="2013-07-18T14:33:24Z" ns="0" title="Note" />
        <page value="20130718144023" timestamp="2013-07-18T14:40:23Z" ns="0" title="Predefinições" />
      </results>
    </querypage>
  </query>
</api>