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="Comp_menuboard_data.png" />
  </query-continue>
  <query>
    <allimages>
      <img name="Change_res.png" timestamp="2013-03-19T18:58:49Z" url="http://dshelp.betterds.com/images/a/a8/Change_res.png" descriptionurl="http://dshelp.betterds.com/wiki/File:Change_res.png" ns="6" title="File:Change res.png" />
      <img name="Comp_clock_analog.png" timestamp="2013-03-21T18:40:51Z" url="http://dshelp.betterds.com/images/f/f2/Comp_clock_analog.png" descriptionurl="http://dshelp.betterds.com/wiki/File:Comp_clock_analog.png" ns="6" title="File:Comp clock analog.png" />
      <img name="Comp_clock_countdown.png" timestamp="2013-03-21T18:41:32Z" url="http://dshelp.betterds.com/images/5/57/Comp_clock_countdown.png" descriptionurl="http://dshelp.betterds.com/wiki/File:Comp_clock_countdown.png" ns="6" title="File:Comp clock countdown.png" />
      <img name="Comp_clock_digital.png" timestamp="2013-03-21T18:41:11Z" url="http://dshelp.betterds.com/images/e/ec/Comp_clock_digital.png" descriptionurl="http://dshelp.betterds.com/wiki/File:Comp_clock_digital.png" ns="6" title="File:Comp clock digital.png" />
      <img name="Comp_configurations.png" timestamp="2013-04-28T16:10:25Z" url="http://dshelp.betterds.com/images/b/bf/Comp_configurations.png" descriptionurl="http://dshelp.betterds.com/wiki/File:Comp_configurations.png" ns="6" title="File:Comp configurations.png" />
      <img name="Comp_date.png" timestamp="2013-03-21T18:42:10Z" url="http://dshelp.betterds.com/images/3/37/Comp_date.png" descriptionurl="http://dshelp.betterds.com/wiki/File:Comp_date.png" ns="6" title="File:Comp date.png" />
      <img name="Comp_enterprise.png" timestamp="2013-03-21T18:21:08Z" url="http://dshelp.betterds.com/images/d/da/Comp_enterprise.png" descriptionurl="http://dshelp.betterds.com/wiki/File:Comp_enterprise.png" ns="6" title="File:Comp enterprise.png" />
      <img name="Comp_interactivity.png" timestamp="2013-03-19T18:29:56Z" url="http://dshelp.betterds.com/images/c/c0/Comp_interactivity.png" descriptionurl="http://dshelp.betterds.com/wiki/File:Comp_interactivity.png" ns="6" title="File:Comp interactivity.png" />
      <img name="Comp_layout_background.png" timestamp="2013-01-14T10:49:39Z" url="http://dshelp.betterds.com/images/e/ef/Comp_layout_background.png" descriptionurl="http://dshelp.betterds.com/wiki/File:Comp_layout_background.png" ns="6" title="File:Comp layout background.png" />
      <img name="Comp_layout_mask.png" timestamp="2013-01-14T10:57:23Z" url="http://dshelp.betterds.com/images/9/90/Comp_layout_mask.png" descriptionurl="http://dshelp.betterds.com/wiki/File:Comp_layout_mask.png" ns="6" title="File:Comp layout mask.png" />
    </allimages>
  </query>
</api>