You are looking at the HTML representation of the XML format.
HTML is good for debugging, but probably is not suitable for your application.
See complete documentation, or API help for more information. 
<?xml version="1.0"?>
<api>
  <query>
    <allimages>
      <img name="Big-buck-bunny.jpg" timestamp="2011-10-03T19:31:06Z" url="https://www.linux62.org/wiki/images/5/54/Big-buck-bunny.jpg" descriptionurl="https://www.linux62.org/wiki/index.php/Fichier:Big-buck-bunny.jpg" ns="6" title="Fichier:Big-buck-bunny.jpg" />
      <img name="Bla_bla.gif" timestamp="2010-06-04T13:39:28Z" url="https://www.linux62.org/wiki/images/6/6d/Bla_bla.gif" descriptionurl="https://www.linux62.org/wiki/index.php/Fichier:Bla_bla.gif" ns="6" title="Fichier:Bla bla.gif" />
      <img name="Bla_bla.jpg" timestamp="2010-06-04T13:36:36Z" url="https://www.linux62.org/wiki/images/6/6c/Bla_bla.jpg" descriptionurl="https://www.linux62.org/wiki/index.php/Fichier:Bla_bla.jpg" ns="6" title="Fichier:Bla bla.jpg" />
      <img name="Capture-1.png" timestamp="2009-09-27T09:06:48Z" url="https://www.linux62.org/wiki/images/e/e4/Capture-1.png" descriptionurl="https://www.linux62.org/wiki/index.php/Fichier:Capture-1.png" ns="6" title="Fichier:Capture-1.png" />
      <img name="Capture-3.png" timestamp="2009-09-27T09:07:57Z" url="https://www.linux62.org/wiki/images/c/c5/Capture-3.png" descriptionurl="https://www.linux62.org/wiki/index.php/Fichier:Capture-3.png" ns="6" title="Fichier:Capture-3.png" />
      <img name="Capture-Bureau.png" timestamp="2009-09-25T17:41:17Z" url="https://www.linux62.org/wiki/images/5/54/Capture-Bureau.png" descriptionurl="https://www.linux62.org/wiki/index.php/Fichier:Capture-Bureau.png" ns="6" title="Fichier:Capture-Bureau.png" />
      <img name="Capture-image1_-_OpenOffice.org_Writer_.png" timestamp="2009-09-25T17:06:21Z" url="https://www.linux62.org/wiki/images/a/af/Capture-image1_-_OpenOffice.org_Writer_.png" descriptionurl="https://www.linux62.org/wiki/index.php/Fichier:Capture-image1_-_OpenOffice.org_Writer_.png" ns="6" title="Fichier:Capture-image1 - OpenOffice.org Writer .png" />
      <img name="Capture-image2_-_OpenOffice.org_Writer_-2.png" timestamp="2009-09-25T17:12:25Z" url="https://www.linux62.org/wiki/images/d/d5/Capture-image2_-_OpenOffice.org_Writer_-2.png" descriptionurl="https://www.linux62.org/wiki/index.php/Fichier:Capture-image2_-_OpenOffice.org_Writer_-2.png" ns="6" title="Fichier:Capture-image2 - OpenOffice.org Writer -2.png" />
      <img name="Capture-image3_-_OpenOffice.org_Writer_-3.png" timestamp="2009-09-26T10:16:34Z" url="https://www.linux62.org/wiki/images/e/ec/Capture-image3_-_OpenOffice.org_Writer_-3.png" descriptionurl="https://www.linux62.org/wiki/index.php/Fichier:Capture-image3_-_OpenOffice.org_Writer_-3.png" ns="6" title="Fichier:Capture-image3 - OpenOffice.org Writer -3.png" />
      <img name="Capture.png" timestamp="2009-09-27T09:03:07Z" url="https://www.linux62.org/wiki/images/8/8a/Capture.png" descriptionurl="https://www.linux62.org/wiki/index.php/Fichier:Capture.png" ns="6" title="Fichier:Capture.png" />
    </allimages>
  </query>
  <query-continue>
    <allimages aifrom="Electricshaver.jpg" />
  </query-continue>
</api>