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 aicontinue="Binding_energy_16.png" />
  </query-continue>
  <query>
    <allimages>
      <img name="Benefit_of_Object_Oriented_Documentation.xls" timestamp="2010-12-15T14:47:18Z" url="http://votewrap.com/images/0/06/Benefit_of_Object_Oriented_Documentation.xls" descriptionurl="http://votewrap.com/index.php/File:Benefit_of_Object_Oriented_Documentation.xls" ns="6" title="File:Benefit of Object Oriented Documentation.xls" />
      <img name="Binding_Energy_Graph.png" timestamp="2011-11-30T15:32:40Z" url="http://votewrap.com/images/6/6a/Binding_Energy_Graph.png" descriptionurl="http://votewrap.com/index.php/File:Binding_Energy_Graph.png" ns="6" title="File:Binding Energy Graph.png" />
      <img name="Binding_Energy_fig_7.png" timestamp="2012-01-29T15:18:05Z" url="http://votewrap.com/images/0/01/Binding_Energy_fig_7.png" descriptionurl="http://votewrap.com/index.php/File:Binding_Energy_fig_7.png" ns="6" title="File:Binding Energy fig 7.png" />
      <img name="Binding_energy_1.png" timestamp="2012-01-29T14:59:16Z" url="http://votewrap.com/images/f/fa/Binding_energy_1.png" descriptionurl="http://votewrap.com/index.php/File:Binding_energy_1.png" ns="6" title="File:Binding energy 1.png" />
      <img name="Binding_energy_10.png" timestamp="2012-01-29T15:01:33Z" url="http://votewrap.com/images/b/b4/Binding_energy_10.png" descriptionurl="http://votewrap.com/index.php/File:Binding_energy_10.png" ns="6" title="File:Binding energy 10.png" />
      <img name="Binding_energy_11.png" timestamp="2012-01-29T15:01:45Z" url="http://votewrap.com/images/8/82/Binding_energy_11.png" descriptionurl="http://votewrap.com/index.php/File:Binding_energy_11.png" ns="6" title="File:Binding energy 11.png" />
      <img name="Binding_energy_12.png" timestamp="2012-01-29T15:02:12Z" url="http://votewrap.com/images/3/3c/Binding_energy_12.png" descriptionurl="http://votewrap.com/index.php/File:Binding_energy_12.png" ns="6" title="File:Binding energy 12.png" />
      <img name="Binding_energy_13.png" timestamp="2012-01-29T15:02:30Z" url="http://votewrap.com/images/a/ad/Binding_energy_13.png" descriptionurl="http://votewrap.com/index.php/File:Binding_energy_13.png" ns="6" title="File:Binding energy 13.png" />
      <img name="Binding_energy_14.png" timestamp="2012-01-29T15:02:44Z" url="http://votewrap.com/images/0/00/Binding_energy_14.png" descriptionurl="http://votewrap.com/index.php/File:Binding_energy_14.png" ns="6" title="File:Binding energy 14.png" />
      <img name="Binding_energy_15.png" timestamp="2012-01-29T15:02:55Z" url="http://votewrap.com/images/f/f3/Binding_energy_15.png" descriptionurl="http://votewrap.com/index.php/File:Binding_energy_15.png" ns="6" title="File:Binding energy 15.png" />
    </allimages>
  </query>
</api>