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>
    <allredirects garcontinue="Xero_Modul_AkAmiumMgs|169" />
  </query-continue>
  <query>
    <pages>
      <page pageid="67" ns="0" title="ManXero General" />
      <page pageid="68" ns="0" title="ManXero Index" />
      <page pageid="70" ns="0" title="ManXero Menu" />
      <page pageid="72" ns="0" title="ManXero ModuleAK" />
      <page pageid="73" ns="0" title="Xero Module AK" />
      <page pageid="78" ns="0" title="ManXero External" />
      <page pageid="87" ns="0" title="Xero macro" />
      <page pageid="110" ns="0" title="Xero Einleitung" />
      <page pageid="213" ns="0" title="Amium Wiki" />
      <page pageid="3075" ns="0" title="Xero Index" />
    </pages>
  </query>
</api>