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="Cloud_affiliation_Almondplus_screen_2.png|4" />
  </query-continue>
  <query>
    <pages>
      <page pageid="4" ns="0" title="Quick start guide - Almond+ 2014" />
      <page pageid="266" ns="0" title="WeMo Smart LED bulb" />
      <page pageid="311" ns="0" title="Nietzsche Enterprise WZB- SPM05" />
      <page pageid="316" ns="0" title="Cree Connected Smart Bulb" />
      <page pageid="318" ns="0" title="CentraLite 3-Series Door &amp; Window Sensor" />
      <page pageid="322" ns="0" title="CentraLite 3-Series Motion Sensor" />
      <page pageid="372" ns="0" title="Climax PSS-29ZBS" />
      <page pageid="374" ns="0" title="Climax CO-8ZBS" />
      <page pageid="376" ns="0" title="Climax SD-8SCZBS" />
      <page pageid="378" ns="0" title="Climax LS-1E-G-GZBS" />
    </pages>
  </query>
</api>