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="Custom_button_on_keypad.png" />
  </query-continue>
  <query>
    <allimages>
      <img name="Banner6.jpg" timestamp="2017-10-12T03:55:59Z" url="http://www.alarmdecoder.com/wiki/images/2/22/Banner6.jpg" descriptionurl="http://www.alarmdecoder.com/wiki/index.php/File:Banner6.jpg" ns="6" title="File:Banner6.jpg" />
      <img name="Bb_ad2pi.jpg" timestamp="2014-01-06T19:22:39Z" url="http://www.alarmdecoder.com/wiki/images/9/9e/Bb_ad2pi.jpg" descriptionurl="http://www.alarmdecoder.com/wiki/index.php/File:Bb_ad2pi.jpg" ns="6" title="File:Bb ad2pi.jpg" />
      <img name="Bb_beaglebone.jpg" timestamp="2014-01-06T19:22:26Z" url="http://www.alarmdecoder.com/wiki/images/0/0d/Bb_beaglebone.jpg" descriptionurl="http://www.alarmdecoder.com/wiki/index.php/File:Bb_beaglebone.jpg" ns="6" title="File:Bb beaglebone.jpg" />
      <img name="Blankimage.png" timestamp="2013-12-12T20:01:05Z" url="http://www.alarmdecoder.com/wiki/images/5/54/Blankimage.png" descriptionurl="http://www.alarmdecoder.com/wiki/index.php/File:Blankimage.png" ns="6" title="File:Blankimage.png" />
      <img name="Camera_list.png" timestamp="2015-05-21T19:52:07Z" url="http://www.alarmdecoder.com/wiki/images/4/4e/Camera_list.png" descriptionurl="http://www.alarmdecoder.com/wiki/index.php/File:Camera_list.png" ns="6" title="File:Camera list.png" />
      <img name="Case_assembly_doc.pdf" timestamp="2015-01-12T22:38:08Z" url="http://www.alarmdecoder.com/wiki/images/b/b1/Case_assembly_doc.pdf" descriptionurl="http://www.alarmdecoder.com/wiki/index.php/File:Case_assembly_doc.pdf" ns="6" title="File:Case assembly doc.pdf" />
      <img name="Create_camera.png" timestamp="2015-05-21T21:17:24Z" url="http://www.alarmdecoder.com/wiki/images/d/d6/Create_camera.png" descriptionurl="http://www.alarmdecoder.com/wiki/index.php/File:Create_camera.png" ns="6" title="File:Create camera.png" />
      <img name="Create_custom_button.png" timestamp="2015-08-24T19:26:28Z" url="http://www.alarmdecoder.com/wiki/images/f/f1/Create_custom_button.png" descriptionurl="http://www.alarmdecoder.com/wiki/index.php/File:Create_custom_button.png" ns="6" title="File:Create custom button.png" />
      <img name="Create_user.png" timestamp="2015-06-24T21:54:17Z" url="http://www.alarmdecoder.com/wiki/images/1/15/Create_user.png" descriptionurl="http://www.alarmdecoder.com/wiki/index.php/File:Create_user.png" ns="6" title="File:Create user.png" />
      <img name="Custom_button_list.png" timestamp="2015-08-24T19:27:04Z" url="http://www.alarmdecoder.com/wiki/images/d/dc/Custom_button_list.png" descriptionurl="http://www.alarmdecoder.com/wiki/index.php/File:Custom_button_list.png" ns="6" title="File:Custom button list.png" />
    </allimages>
  </query>
</api>