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>
    <logevents lestart="2015-06-16T12:08:51Z" />
  </query-continue>
  <query>
    <logevents>
      <item logid="2501" ns="6" title="Fichier:SF.jpg" pageid="659" type="upload" action="upload" img_sha1="40aiqvx6ansc1a5bhd9togjx6pv3tbz" img_timestamp="2017-03-16T08:54:16Z" user="Wikiuser" timestamp="2017-03-16T08:54:16Z" comment="MsUpload" />
      <item logid="2500" ns="6" title="Fichier:Page0001.jpg" pageid="214" type="delete" action="delete" user="Wikiuser" timestamp="2016-05-19T09:34:00Z" comment="Ancienne version 20160519091132!Page0001.jpg supprimée" />
      <item logid="2499" ns="6" title="Fichier:Page0001.jpg" pageid="214" type="upload" action="overwrite" img_sha1="6l5qo4syqlypi47t9affodqdqloo7b4" img_timestamp="2016-05-19T09:11:32Z" user="Wikiuser" timestamp="2016-05-19T09:11:32Z" comment="" />
      <item logid="2498" ns="0" title="Test" pageid="1" type="patrol" action="patrol" user="Wikiuser" timestamp="2016-05-19T09:09:56Z" comment="">
        <patrol cur="2441" prev="2313" auto="1" />
      </item>
      <item logid="2497" ns="10" title="Modèle:Accueil/Présentation" pageid="24" type="patrol" action="patrol" user="Wikiuser" timestamp="2015-07-06T13:12:37Z" comment="">
        <patrol cur="2440" prev="2439" auto="1" />
      </item>
      <item logid="2496" ns="10" title="Modèle:Accueil/Présentation" pageid="24" type="patrol" action="patrol" user="Wikiuser" timestamp="2015-06-16T12:20:39Z" comment="">
        <patrol cur="2439" prev="2438" auto="1" />
      </item>
      <item logid="2495" ns="10" title="Modèle:Accueil/Présentation" pageid="24" type="patrol" action="patrol" user="Wikiuser" timestamp="2015-06-16T12:19:02Z" comment="">
        <patrol cur="2438" prev="2434" auto="1" />
      </item>
      <item logid="2494" ns="6" title="Fichier:Programme Atelier Prospective Regionale 24 juin 2015.pdf" pageid="656" type="upload" action="overwrite" img_sha1="gecl7uvxx0457rqk8bav6yhylukq7ec" img_timestamp="2015-06-16T12:16:52Z" user="Wikiuser" timestamp="2015-06-16T12:16:52Z" comment="MsUpload" />
      <item logid="2493" ns="6" title="Fichier:Invitation 27eme atelier - résilience.pdf" pageid="657" type="upload" action="overwrite" img_sha1="7bsr37mo7gn5vna4u5hfl9caydsepac" img_timestamp="2015-06-16T12:13:00Z" user="Wikiuser" timestamp="2015-06-16T12:13:00Z" comment="MsUpload" />
      <item logid="2492" ns="14" title="Catégorie:Atelier de Prospective Régionale" pageid="658" type="patrol" action="patrol" user="Wikiuser" timestamp="2015-06-16T12:10:27Z" comment="">
        <patrol cur="2435" prev="2432" auto="1" />
      </item>
    </logevents>
  </query>
</api>