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>
    <allpages>
      <p pageid="15" ns="0" title="Close corporation" />
      <p pageid="17" ns="0" title="Company record keeping" />
      <p pageid="5" ns="0" title="Credit Agreement" />
      <p pageid="28" ns="0" title="Depreciation allowance table" />
      <p pageid="7" ns="0" title="Incidental credit agreement" />
      <p pageid="1" ns="0" title="Main Page" />
      <p pageid="8" ns="0" title="National Credit Act" />
      <p pageid="10" ns="0" title="Reckless credit" />
      <p pageid="16" ns="0" title="Reckless trading" />
      <p pageid="11" ns="0" title="Registration of credit providers" />
    </allpages>
  </query>
  <query-continue>
    <allpages apcontinue="SDL" />
  </query-continue>
</api>