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"?>
    <alllinks galcontinue="B-1|100143659" />
      <page pageid="100009604" ns="0" title="Spanish language" />
      <page pageid="100033336" ns="1" title="Talk:B-17 Flying Fortress (bomber)" />
      <page pageid="100059961" ns="0" title="Divisor (ring theory)" />
      <page pageid="100069493" ns="0" title="Guided bomb" />
      <page pageid="100081685" ns="0" title="Romanian language" />
      <page pageid="100115074" ns="0" title="Silent and invisible letters in English" />
      <page pageid="100139750" ns="0" title="U.S. House Armed Services Committee" />
      <page pageid="100143258" ns="0" title="Air Force Materiel Command" />
      <page pageid="100143653" ns="0" title="Tinker Air Force Base" />
      <page pageid="100143658" ns="0" title="Oklahoma City Air Logistics Center/Definition" />