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="Broken_glass.jpg|24" />
  </query-continue>
  <query>
    <pages>
      <page pageid="6" ns="0" title="Gem-gum technology" />
      <page pageid="10" ns="0" title="Products of gem-gum-tec" />
      <page pageid="171" ns="0" title="Assembly layer" />
      <page pageid="173" ns="0" title="Filters" />
      <page pageid="412" ns="0" title="The DAPMAT demo project" />
      <page pageid="1349" ns="0" title="Block diagram of a gem-gum on-chip factory" />
      <page pageid="1588" ns="0" title="Logs" />
      <page pageid="1725" ns="0" title="The fractal braided river of fate" />
      <page pageid="1771" ns="0" title="Stiff cantilever AFM" />
      <page pageid="1889" ns="0" title="Control flow multiverse" />
    </pages>
  </query>
</api>