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>
    <allimages gaicontinue="20200709_scanscore_video.png" />
  </query-continue>
  <query>
    <pages>
      <page pageid="3035" ns="6" title="File:120vac wire to estop.jpg" />
      <page pageid="3037" ns="6" title="File:120vac wire to estop closeup.jpg" />
      <page pageid="3020" ns="6" title="File:14awg thhn wire.jpg" />
      <page pageid="2518" ns="6" title="File:180pipe chrome.jpg" />
      <page pageid="6815" ns="6" title="File:20200327 trainingdoc002 video.png" />
      <page pageid="6816" ns="6" title="File:20200331 training hexagon video.png" />
      <page pageid="6817" ns="6" title="File:20200406 cornerprofile faro video.png" />
      <page pageid="6818" ns="6" title="File:20200514 changelanguges video.png" />
      <page pageid="6819" ns="6" title="File:20200515 import180 video.png" />
      <page pageid="6820" ns="6" title="File:20200609 multiple versions parts video.png" />
    </pages>
  </query>
</api>