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>
    <allpages apcontinue="أبو_ذر_نموذجا" />
  </query-continue>
  <query>
    <allpages>
      <p pageid="662" ns="0" title="Footnotes" />
      <p pageid="650" ns="0" title="Movies url" />
      <p pageid="621" ns="0" title="Sample" />
      <p pageid="651" ns="0" title="Thoughts url" />
      <p pageid="611" ns="0" title="Title=تصنيف الأفكار" />
      <p pageid="660" ns="0" title="Videosample" />
      <p pageid="243" ns="0" title="Youtubesample" />
      <p pageid="92" ns="0" title="أبو ذر شاهداً على الديمقراطية" />
      <p pageid="143" ns="0" title="أبو ذر شاهداً على الشرعية" />
      <p pageid="460" ns="0" title="أبو ذر في التاريخ" />
    </allpages>
  </query>
</api>