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="3651" pageid="1" ns="0" title="Main Page" type="patrol" action="patrol" user="Admin" timestamp="2010-04-30T10:32:05Z" comment="">
        <patrol auto="1" prev="3732" cur="3733" />
      </item>
      <item logid="3650" pageid="1" ns="0" title="Main Page" type="patrol" action="patrol" user="Irini" timestamp="2010-04-29T08:40:01Z" comment="">
        <patrol auto="1" prev="212" cur="3732" />
      </item>
      <item logid="3649" pageid="1666" ns="0" title="Zlib" type="protect" action="protect" user="Admin" timestamp="2010-04-09T12:25:02Z" comment="">
        <param>[edit=sysop] (indefinite) [move=sysop] (indefinite)</param>
        <param />
      </item>
      <item logid="3648" pageid="1666" ns="0" title="Zlib" type="patrol" action="patrol" user="Admin" timestamp="2010-04-09T12:24:57Z" comment="">
        <patrol auto="1" prev="0" cur="3730" />
      </item>
      <item logid="3647" pageid="1665" ns="0" title="Zakim" type="protect" action="protect" user="Admin" timestamp="2010-04-09T12:24:25Z" comment="">
        <param>[edit=sysop] (indefinite) [move=sysop] (indefinite)</param>
        <param />
      </item>
      <item logid="3646" pageid="1665" ns="0" title="Zakim" type="patrol" action="patrol" user="Admin" timestamp="2010-04-09T12:24:21Z" comment="">
        <patrol auto="1" prev="0" cur="3728" />
      </item>
      <item logid="3645" pageid="1664" ns="0" title="XSL transformation (XSLT)" type="protect" action="protect" user="Admin" timestamp="2010-04-09T12:23:57Z" comment="">
        <param>[edit=sysop] (indefinite) [move=sysop] (indefinite)</param>
        <param />
      </item>
      <item logid="3644" pageid="1664" ns="0" title="XSL transformation (XSLT)" type="patrol" action="patrol" user="Admin" timestamp="2010-04-09T12:23:52Z" comment="">
        <patrol auto="1" prev="0" cur="3726" />
      </item>
      <item logid="3643" pageid="1663" ns="0" title="XSL formatting objects (XSL FO)" type="patrol" action="patrol" user="Admin" timestamp="2010-04-09T12:23:31Z" comment="">
        <patrol auto="1" prev="0" cur="3725" />
      </item>
      <item logid="3642" pageid="1662" ns="0" title="XSL (Extensible style sheet language)" type="patrol" action="patrol" user="Admin" timestamp="2010-04-09T12:23:02Z" comment="">
        <patrol auto="1" prev="0" cur="3724" />
      </item>
    </logevents>
  </query>
  <query-continue>
    <logevents lestart="2010-04-09T12:22:41Z" />
  </query-continue>
</api>