You are looking at the HTML representation of the mFormat?> format.
HTML is good for debugging, but probably is not suitable for your application.
Please see "format" parameter documentation at the API help for more information.
<?xml version="1.0" encoding="utf-8"?>
<api>
  <query-continue>
    <logevents lestart="20110104030356" />
  </query-continue>
  <query>
    <logevents>
      <item ns="2" title="User:AanyaJha" type="delete" action="delete" user="FredericBaud" timestamp="2011-02-08T08:08:09Z" comment="spam" />
      <item ns="0" title="24902" type="delete" action="delete" user="FredericBaud" timestamp="2011-02-08T08:07:48Z" comment="spam" />
      <item ns="0" title="P90x workout" type="delete" action="delete" user="FredericBaud" timestamp="2011-02-08T08:07:19Z" comment="spam" />
      <item ns="0" title="IT computer certification school downtown 7 and market 97071" type="delete" action="delete" user="FredericBaud" timestamp="2011-02-08T08:06:51Z" comment="spam" />
      <item ns="0" title="2 million square feet of HVAC Pinch me I must be dreaming 91916" type="delete" action="delete" user="FredericBaud" timestamp="2011-02-08T08:06:23Z" comment="spam" />
      <item ns="0" title="U gotta a degree in pussy eating and HVAC or some shit lol" type="delete" action="delete" user="FredericBaud" timestamp="2011-02-08T08:05:13Z" comment="spam" />
      <item ns="2" title="User:AanyaJha" new_ns="0" new_title="P90x workout" type="move" action="move" user="AanyaJha" timestamp="2011-02-08T03:02:13Z" />
      <item ns="2" title="User:Teresacarter86" pageid="36" new_ns="0" new_title="P90X reviews" type="move" action="move" user="Teresacarter86" timestamp="2011-01-17T03:10:53Z" />
      <item ns="2" title="User:AngieCrosby01" type="delete" action="delete" user="FredericBaud" timestamp="2011-01-04T10:12:32Z" comment="spam" />
      <item ns="0" title="P90x workout program" type="delete" action="delete" user="FredericBaud" timestamp="2011-01-04T10:09:39Z" comment="spam" />
    </logevents>
  </query>
</api>