You are looking at the HTML representation of the XML format.
HTML is good for debugging, but probably is not suitable for your application.
See complete documentation, or API help for more information. 
<?xml version="1.0"?>
<api>
  <query>
    <allpages>
      <p pageid="10" ns="0" title="CARNet" />
      <p pageid="15" ns="0" title="CARNet Helpdesk" />
      <p pageid="261" ns="0" title="CARNet Webmail" />
      <p pageid="369" ns="0" title="CARNet Webmail - adresar" />
      <p pageid="372" ns="0" title="CARNet Webmail - bilješke" />
      <p pageid="373" ns="0" title="CARNet Webmail - datoteke" />
      <p pageid="376" ns="0" title="CARNet Webmail - desktop klijenti" />
      <p pageid="377" ns="0" title="CARNet Webmail - desktop klijenti - Mozilla Thunderbird" />
      <p pageid="379" ns="0" title="CARNet Webmail - desktop klijenti - Outlook" />
      <p pageid="378" ns="0" title="CARNet Webmail - desktop klijenti - Outlook Express" />
    </allpages>
  </query>
  <query-continue>
    <allpages apfrom="CARNet Webmail - filtriranje poruka" />
  </query-continue>
</api>