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>
    <allimages>
      <img name="Boot_screen_2.3.1.png" timestamp="2014-07-07T12:45:04Z" url="http://wiki.pointlinux.org/images/8/83/Boot_screen_2.3.1.png" descriptionurl="http://wiki.pointlinux.org/index.php?title=File:Boot_screen_2.3.1.png" ns="6" title="File:Boot screen 2.3.1.png" />
      <img name="Create_initial_user.png" timestamp="2014-07-04T12:52:07Z" url="http://wiki.pointlinux.org/images/8/8a/Create_initial_user.png" descriptionurl="http://wiki.pointlinux.org/index.php?title=File:Create_initial_user.png" ns="6" title="File:Create initial user.png" />
      <img name="Define_boot_manager.png" timestamp="2014-07-04T13:25:55Z" url="http://wiki.pointlinux.org/images/e/e8/Define_boot_manager.png" descriptionurl="http://wiki.pointlinux.org/index.php?title=File:Define_boot_manager.png" ns="6" title="File:Define boot manager.png" />
      <img name="Installation_summary.png" timestamp="2014-07-04T13:37:48Z" url="http://wiki.pointlinux.org/images/5/59/Installation_summary.png" descriptionurl="http://wiki.pointlinux.org/index.php?title=File:Installation_summary.png" ns="6" title="File:Installation summary.png" />
      <img name="Select_disk.png" timestamp="2014-07-04T12:54:07Z" url="http://wiki.pointlinux.org/images/e/eb/Select_disk.png" descriptionurl="http://wiki.pointlinux.org/index.php?title=File:Select_disk.png" ns="6" title="File:Select disk.png" />
      <img name="Select_keyboard.png" timestamp="2014-07-04T12:49:17Z" url="http://wiki.pointlinux.org/images/0/0e/Select_keyboard.png" descriptionurl="http://wiki.pointlinux.org/index.php?title=File:Select_keyboard.png" ns="6" title="File:Select keyboard.png" />
      <img name="Select_language.png" timestamp="2014-07-04T12:42:55Z" url="http://wiki.pointlinux.org/images/7/72/Select_language.png" descriptionurl="http://wiki.pointlinux.org/index.php?title=File:Select_language.png" ns="6" title="File:Select language.png" />
      <img name="Select_timezone.png" timestamp="2014-07-04T12:46:41Z" url="http://wiki.pointlinux.org/images/3/30/Select_timezone.png" descriptionurl="http://wiki.pointlinux.org/index.php?title=File:Select_timezone.png" ns="6" title="File:Select timezone.png" />
      <img name="Set_partitioning.png" timestamp="2014-07-04T12:56:57Z" url="http://wiki.pointlinux.org/images/6/6b/Set_partitioning.png" descriptionurl="http://wiki.pointlinux.org/index.php?title=File:Set_partitioning.png" ns="6" title="File:Set partitioning.png" />
    </allimages>
  </query>
</api>