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="CifXDrv_hwinst_netPLC_04en.png" />
  </query-continue>
  <query>
    <allimages>
      <img name="Block_call.png" timestamp="2013-02-15T16:30:35Z" url="https://wiki.ibhsoftec.com/en/images/d/d5/Block_call.png" descriptionurl="https://wiki.ibhsoftec.com/en/File:Block_call.png" ns="6" title="File:Block call.png" />
      <img name="CIF_SyCon.png" timestamp="2012-12-19T09:55:37Z" url="https://wiki.ibhsoftec.com/en/images/c/c6/CIF_SyCon.png" descriptionurl="https://wiki.ibhsoftec.com/en/File:CIF_SyCon.png" ns="6" title="File:CIF SyCon.png" />
      <img name="COM525.png" timestamp="2013-06-14T13:15:49Z" url="https://wiki.ibhsoftec.com/en/images/6/6e/COM525.png" descriptionurl="https://wiki.ibhsoftec.com/en/File:COM525.png" ns="6" title="File:COM525.png" />
      <img name="COM_Settings.png" timestamp="2012-12-04T15:06:41Z" url="https://wiki.ibhsoftec.com/en/images/f/fd/COM_Settings.png" descriptionurl="https://wiki.ibhsoftec.com/en/File:COM_Settings.png" ns="6" title="File:COM Settings.png" />
      <img name="Ccflex001.jpg" timestamp="2012-06-25T09:40:26Z" url="https://wiki.ibhsoftec.com/en/images/d/d2/Ccflex001.jpg" descriptionurl="https://wiki.ibhsoftec.com/en/File:Ccflex001.jpg" ns="6" title="File:Ccflex001.jpg" />
      <img name="Ccflex002.jpg" timestamp="2012-06-25T09:40:37Z" url="https://wiki.ibhsoftec.com/en/images/d/d6/Ccflex002.jpg" descriptionurl="https://wiki.ibhsoftec.com/en/File:Ccflex002.jpg" ns="6" title="File:Ccflex002.jpg" />
      <img name="Ccflex003.jpg" timestamp="2012-06-25T09:43:21Z" url="https://wiki.ibhsoftec.com/en/images/c/cd/Ccflex003.jpg" descriptionurl="https://wiki.ibhsoftec.com/en/File:Ccflex003.jpg" ns="6" title="File:Ccflex003.jpg" />
      <img name="CifXDrv_devmgmt_netPLC_01en.PNG" timestamp="2012-08-06T05:47:26Z" url="https://wiki.ibhsoftec.com/en/images/8/8b/CifXDrv_devmgmt_netPLC_01en.PNG" descriptionurl="https://wiki.ibhsoftec.com/en/File:CifXDrv_devmgmt_netPLC_01en.PNG" ns="6" title="File:CifXDrv devmgmt netPLC 01en.PNG" />
      <img name="CifXDrv_hwinst_netPLC_01en.png" timestamp="2012-08-06T05:47:35Z" url="https://wiki.ibhsoftec.com/en/images/a/a5/CifXDrv_hwinst_netPLC_01en.png" descriptionurl="https://wiki.ibhsoftec.com/en/File:CifXDrv_hwinst_netPLC_01en.png" ns="6" title="File:CifXDrv hwinst netPLC 01en.png" />
      <img name="CifXDrv_hwinst_netPLC_02en.png" timestamp="2012-08-06T05:47:43Z" url="https://wiki.ibhsoftec.com/en/images/f/f0/CifXDrv_hwinst_netPLC_02en.png" descriptionurl="https://wiki.ibhsoftec.com/en/File:CifXDrv_hwinst_netPLC_02en.png" ns="6" title="File:CifXDrv hwinst netPLC 02en.png" />
    </allimages>
  </query>
</api>