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>
    <alllinks alcontinue="Colegio_Luis_Alberto_Acuña_-_16877000011201|1" />
  </query-continue>
  <query>
    <alllinks>
      <l fromid="1" ns="0" title="Centro Educativo Pozo Azul - 26852400009401" />
      <l fromid="1" ns="0" title="Centro Educativo Verdín - 26875500012701" />
      <l fromid="1" ns="0" title="Colegio Alberto Santos Buitrago - 26875500002001" />
      <l fromid="1" ns="0" title="Colegio Avelina Moreno - 16875500032701" />
      <l fromid="1" ns="0" title="Colegio Departamental La Inmaculada - 16852400011101" />
      <l fromid="1" ns="0" title="Colegio Guillermo Suárez- Díaz- Árbol Solo - 26875500004601" />
      <l fromid="1" ns="0" title="Colegio Integrado Inmaculada Concepción - 16817600020001" />
      <l fromid="1" ns="0" title="Colegio Integrado Pablo Antonio Obando - 16874500014101" />
      <l fromid="1" ns="0" title="Colegio La Llanita - 26874500016101" />
      <l fromid="1" ns="0" title="Colegio Luis A Calvo - 16829800023501" />
    </alllinks>
  </query>
</api>