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="2058" ns="0" title="BbStarter Strategies" />
      <p pageid="2151" ns="0" title="Bb Auto Groups Feature" />
      <p pageid="2073" ns="0" title="Bb Manage Sections" />
      <p pageid="2119" ns="0" title="Bb Organization Sites" />
      <p pageid="2139" ns="0" title="Bb QuickStart Guide" />
      <p pageid="2052" ns="0" title="Blackboard" />
      <p pageid="1481" ns="0" title="Blackboard Collaborate" />
      <p pageid="2083" ns="0" title="Blackboard Downtime" />
      <p pageid="2107" ns="0" title="Blackboard Getting Started Instructors" />
      <p pageid="2057" ns="0" title="Blackboard Index" />
    </allpages>
  </query>
  <query-continue>
    <allpages apfrom="Blackboard Pilot Criteria" />
  </query-continue>
</api>