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>
    <allimages aicontinue="20160324235325|FIFigura8.jpg" />
  </query-continue>
  <query>
    <allimages>
      <img name="MetasFresh.png" timestamp="2016-04-21T23:10:14Z" user="Red1" url="http://www.adempiere.com/images/4/46/MetasFresh.png" descriptionurl="http://www.adempiere.com/File:MetasFresh.png" ns="6" title="File:MetasFresh.png" />
      <img name="TwoYearGovernance.png" timestamp="2016-04-21T20:54:33Z" user="Red1" url="http://www.adempiere.com/images/2/2f/TwoYearGovernance.png" descriptionurl="http://www.adempiere.com/File:TwoYearGovernance.png" ns="6" title="File:TwoYearGovernance.png" />
      <img name="BOSSIE2015.png" timestamp="2016-04-13T15:01:30Z" user="Red1" url="http://www.adempiere.com/images/e/e9/BOSSIE2015.png" descriptionurl="http://www.adempiere.com/File:BOSSIE2015.png" ns="6" title="File:BOSSIE2015.png" />
      <img name="SF_Project_March.jpg" timestamp="2016-04-12T15:16:49Z" user="Red1" url="http://www.adempiere.com/images/2/2c/SF_Project_March.jpg" descriptionurl="http://www.adempiere.com/File:SF_Project_March.jpg" ns="6" title="File:SF Project March.jpg" />
      <img name="TTH_AusschreibungTabPosition_360LTS.png" timestamp="2016-03-24T23:53:25Z" user="Maintenance script" anon="" url="http://www.adempiere.com/images/3/3c/TTH_AusschreibungTabPosition_360LTS.png" descriptionurl="http://www.adempiere.com/File:TTH_AusschreibungTabPosition_360LTS.png" ns="6" title="File:TTH AusschreibungTabPosition 360LTS.png" />
      <img name="Server_install.png" timestamp="2016-03-24T23:53:25Z" user="Maintenance script" anon="" url="http://www.adempiere.com/images/3/3c/Server_install.png" descriptionurl="http://www.adempiere.com/File:Server_install.png" ns="6" title="File:Server install.png" />
      <img name="SFAndroid-Visit-Detail.png" timestamp="2016-03-24T23:53:25Z" user="Maintenance script" anon="" url="http://www.adempiere.com/images/3/3c/SFAndroid-Visit-Detail.png" descriptionurl="http://www.adempiere.com/File:SFAndroid-Visit-Detail.png" ns="6" title="File:SFAndroid-Visit-Detail.png" />
      <img name="ManPageW_RfQResponse_ResponseLine.png" timestamp="2016-03-24T23:53:25Z" user="Maintenance script" anon="" url="http://www.adempiere.com/images/3/3c/ManPageW_RfQResponse_ResponseLine.png" descriptionurl="http://www.adempiere.com/File:ManPageW_RfQResponse_ResponseLine.png" ns="6" title="File:ManPageW RfQResponse ResponseLine.png" />
      <img name="ManPageW_Product_Substitute_de.png" timestamp="2016-03-24T23:53:25Z" user="Maintenance script" anon="" url="http://www.adempiere.com/images/3/3c/ManPageW_Product_Substitute_de.png" descriptionurl="http://www.adempiere.com/File:ManPageW_Product_Substitute_de.png" ns="6" title="File:ManPageW Product Substitute de.png" />
      <img name="JP_InstallOnWindows3-1.png" timestamp="2016-03-24T23:53:25Z" user="Maintenance script" anon="" url="http://www.adempiere.com/images/3/3c/JP_InstallOnWindows3-1.png" descriptionurl="http://www.adempiere.com/File:JP_InstallOnWindows3-1.png" ns="6" title="File:JP InstallOnWindows3-1.png" />
    </allimages>
  </query>
</api>