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>
    <allpages>
      <p pageid="1324" ns="0" title="Build video enc" />
      <p pageid="1325" ns="0" title="Build video enc env" />
      <p pageid="1281" ns="0" title="Caa4nnrpd" />
      <p pageid="1346" ns="0" title="EGroupWare" />
      <p pageid="1359" ns="0" title="FFMPEG WIN32 DAILY" />
      <p pageid="1302" ns="0" title="Gpi-pulser" />
      <p pageid="1" ns="0" title="Main Page" />
      <p pageid="1358" ns="0" title="Mpng" />
      <p pageid="1345" ns="0" title="Ntfs-3g" />
      <p pageid="1282" ns="0" title="Pmf" />
    </allpages>
  </query>
  <query-continue>
    <allpages apfrom="Ppf" />
  </query-continue>
</api>