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="Term_2_SACS_Remote_Learning_Junior_School_and_Gawura_Guide.pdf" />
  </query-continue>
  <query>
    <pages>
      <page pageid="455" ns="6" title="File:TCF v2.1.pdf" imagerepository="local">
        <imageinfo>
          <ii timestamp="2017-02-11T01:25:02Z" user="Bswibel" />
        </imageinfo>
      </page>
      <page pageid="407" ns="6" title="File:TOK Essay and Presentation Guide.pdf" imagerepository="local">
        <imageinfo>
          <ii timestamp="2016-07-26T03:57:59Z" user="Bswibel" />
        </imageinfo>
      </page>
      <page pageid="851" ns="6" title="File:Teaching and Learning Model.pdf" imagerepository="local">
        <imageinfo>
          <ii timestamp="2021-02-13T02:23:45Z" user="Bswibel" />
        </imageinfo>
      </page>
      <page pageid="357" ns="6" title="File:Term 1 Winter Sport Training Schedule 2016.pdf" imagerepository="local">
        <imageinfo>
          <ii timestamp="2016-03-17T20:40:47Z" user="Bswibel" />
        </imageinfo>
      </page>
    </pages>
  </query>
</api>