You are looking at the HTML representation of the XML format.
HTML is good for debugging, but probably is not suitable for your application.
See complete documentation, or API help for more information. 
<?xml version="1.0"?>
<api>
  <query-continue>
    <allimages gaifrom="60th Independence Aniversary Celebration at Oyoko17.jpg" />
  </query-continue>
  <query>
    <pages>
      <page pageid="264" ns="6" title="File:12345.JPG" />
      <page pageid="504" ns="6" title="File:60th Independence Aniversary Celebration at Oyoko.jpg" />
      <page pageid="505" ns="6" title="File:60th Independence Aniversary Celebration at Oyoko1.jpg" />
      <page pageid="514" ns="6" title="File:60th Independence Aniversary Celebration at Oyoko10.jpg" />
      <page pageid="515" ns="6" title="File:60th Independence Aniversary Celebration at Oyoko11.jpg" />
      <page pageid="516" ns="6" title="File:60th Independence Aniversary Celebration at Oyoko12.jpg" />
      <page pageid="517" ns="6" title="File:60th Independence Aniversary Celebration at Oyoko13.jpg" />
      <page pageid="518" ns="6" title="File:60th Independence Aniversary Celebration at Oyoko14.jpg" />
      <page pageid="519" ns="6" title="File:60th Independence Aniversary Celebration at Oyoko15.jpg" />
      <page pageid="520" ns="6" title="File:60th Independence Aniversary Celebration at Oyoko16.jpg" />
    </pages>
  </query>
</api>