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>
    <allimages>
      <img name="BYLAWS_OF_newco.pdf" timestamp="2013-02-26T09:40:07Z" url="http://www.wikilegal.it/images/BYLAWS_OF_newco.pdf" descriptionurl="http://www.wikilegal.it/index.php/File:BYLAWS_OF_newco.pdf" ns="6" title="File:BYLAWS OF newco.pdf" />
      <img name="Brochure.doc" timestamp="2013-02-26T09:40:34Z" url="http://www.wikilegal.it/images/Brochure.doc" descriptionurl="http://www.wikilegal.it/index.php/File:Brochure.doc" ns="6" title="File:Brochure.doc" />
      <img name="By-nc-sa.eu.png" timestamp="2013-02-26T09:02:03Z" url="http://www.wikilegal.it/images/By-nc-sa.eu.png" descriptionurl="http://www.wikilegal.it/index.php/File:By-nc-sa.eu.png" ns="6" title="File:By-nc-sa.eu.png" />
      <img name="COMMERCIAL_LEASE.pdf" timestamp="2013-02-26T09:41:55Z" url="http://www.wikilegal.it/images/COMMERCIAL_LEASE.pdf" descriptionurl="http://www.wikilegal.it/index.php/File:COMMERCIAL_LEASE.pdf" ns="6" title="File:COMMERCIAL LEASE.pdf" />
      <img name="Come_Iniziare.png" timestamp="2013-02-26T09:42:25Z" url="http://www.wikilegal.it/images/Come_Iniziare.png" descriptionurl="http://www.wikilegal.it/index.php/File:Come_Iniziare.png" ns="6" title="File:Come Iniziare.png" />
      <img name="Come_iniziare.png" timestamp="2013-02-26T09:43:11Z" url="http://www.wikilegal.it/images/Come_iniziare.png" descriptionurl="http://www.wikilegal.it/index.php/File:Come_iniziare.png" ns="6" title="File:Come iniziare.png" />
      <img name="Comparsa_di_risposta.doc" timestamp="2013-02-26T09:43:43Z" url="http://www.wikilegal.it/images/Comparsa_di_risposta.doc" descriptionurl="http://www.wikilegal.it/index.php/File:Comparsa_di_risposta.doc" ns="6" title="File:Comparsa di risposta.doc" />
      <img name="Comunicazione_apertura_in_INGLESE.pdf" timestamp="2013-02-26T09:40:08Z" url="http://www.wikilegal.it/images/Comunicazione_apertura_in_INGLESE.pdf" descriptionurl="http://www.wikilegal.it/index.php/File:Comunicazione_apertura_in_INGLESE.pdf" ns="6" title="File:Comunicazione apertura in INGLESE.pdf" />
      <img name="Consultancy_agreement.pdf" timestamp="2013-02-26T09:39:39Z" url="http://www.wikilegal.it/images/Consultancy_agreement.pdf" descriptionurl="http://www.wikilegal.it/index.php/File:Consultancy_agreement.pdf" ns="6" title="File:Consultancy agreement.pdf" />
      <img name="Diploma_concorso.png" timestamp="2013-02-26T09:39:03Z" url="http://www.wikilegal.it/images/Diploma_concorso.png" descriptionurl="http://www.wikilegal.it/index.php/File:Diploma_concorso.png" ns="6" title="File:Diploma concorso.png" />
    </allimages>
  </query>
  <query-continue>
    <allimages aicontinue="Giulia_Picchi.jpg" />
  </query-continue>
</api>