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>
    <logevents>
      <item logid="4251" pageid="0" ns="2" title="User:OwenMarch" type="delete" action="delete" user="WikiSysop" timestamp="2013-01-07T22:49:50Z" comment="Vandalism: content was: &quot;My name is Owen March. I life in Oberkreuzstetten (Austria).&lt;br&gt;&lt;br&gt;&lt;br&gt;My webpage - [http://www.shopbypackers.com/player-list/jermichael-finley-jersey Jermic...&quot; (and the only contributor was &quot;[[Special:Contributions/OwenMarch|Ow" />
      <item logid="4250" pageid="0" ns="2" title="User:TerriV97" type="delete" action="delete" user="WikiSysop" timestamp="2013-01-07T22:49:37Z" comment="Vandalism: content was: &quot;Got nothing to write about myself at all.&lt;br&gt;I enjoy of finally being a member of this community.&lt;br&gt;&lt;br&gt;I really hope I&#039;m useful in one way .&lt;br&gt;&lt;br&gt;Take a loo...&quot; (and the only contributor was &quot;[[Special:Contributions/TerriV97|T" />
      <item logid="4249" pageid="0" ns="2" title="User:OwenMarch" type="block" action="block" user="WikiSysop" timestamp="2013-01-07T22:48:54Z" comment="spam">
        <block flags="nocreate,noemail" duration="infinite" expiry="2024-04-27T09:42:43Z" />
      </item>
      <item logid="4248" pageid="0" ns="2" title="User:TerriV97" type="block" action="block" user="WikiSysop" timestamp="2013-01-07T22:48:20Z" comment="spam">
        <block flags="nocreate,noemail" duration="infinite" expiry="2024-04-27T09:42:43Z" />
      </item>
      <item logid="4247" pageid="0" ns="2" title="User:TerriV97" type="newusers" action="create" user="TerriV97" timestamp="2013-01-07T22:35:17Z" comment="">
        <param>1204</param>
      </item>
      <item logid="4246" pageid="0" ns="2" title="User:OwenMarch" type="newusers" action="create" user="OwenMarch" timestamp="2013-01-07T22:31:25Z" comment="">
        <param>1203</param>
      </item>
      <item logid="4245" pageid="0" ns="2" title="User:Rsc" type="delete" action="delete" user="WikiSysop" timestamp="2012-02-07T21:44:58Z" comment="content was: &quot;test&quot; (and the only contributor was &quot;[[Special:Contributions/Rsc|Rsc]]&quot;)" />
      <item logid="4244" pageid="0" ns="2" title="User:Rsc" type="newusers" action="create" user="Rsc" timestamp="2012-02-07T21:42:52Z" comment="">
        <param>1202</param>
      </item>
      <item logid="4243" pageid="0" ns="2" title="User:CarrolHolmberg934" type="delete" action="delete" user="WikiSysop" timestamp="2012-02-07T21:23:28Z" comment="Vandalism: content was: &quot;Whether it is for gambling in sports, casino games or poker games, casinos like that of [http://www.onlinegamblingireland.com/ online gambling...&quot; (and the only contributor was &quot;[[Special:Contributions/CarrolHolmberg934|CarrolHolm" />
      <item logid="4242" pageid="0" ns="0" title="CarrolHolmberg934" type="delete" action="delete" user="WikiSysop" timestamp="2012-02-07T21:23:25Z" comment="Vandalism: content was: &quot;Whether it is for gambling in sports, casino games or poker games, casinos like that of [http://www.onlinegamblingireland.com/ online gambling...&quot; (and the only contributor was &quot;[[Special:Contributions/CarrolHolmberg934|CarrolHolm" />
    </logevents>
  </query>
  <query-continue>
    <logevents lestart="2012-02-07T21:23:20Z" />
  </query-continue>
</api>