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>
    <allfileusages gafcontinue="ExplorerNetworkOptions.jpg|2033" />
  </query-continue>
  <query>
    <pages>
      <page pageid="1677" ns="0" title="LTSP Disable NBD-Proxy Patch" />
      <page pageid="1687" ns="0" title="Clear Outlook Cache with Group Policy" />
      <page pageid="1692" ns="0" title="Supermicro SC-846" />
      <page pageid="1733" ns="0" title="TAPI" />
      <page pageid="1791" ns="0" title="ESXi iSCSI Tweaks" />
      <page pageid="1835" ns="0" title="AD Best Practices" />
      <page pageid="1859" ns="0" title="ADUserTool" />
      <page pageid="1890" ns="0" title="Complex Password Generator" />
    </pages>
  </query>
</api>