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 gaicontinue="3_0_ODE_prim_fk_1.jpg" />
  </query-continue>
  <query>
    <pages>
      <page pageid="962" ns="6" title="Fil:118 10-logaritmen.pdf" />
      <page pageid="163" ns="6" title="Fil:13Övn5 2agradspol.jpg" />
      <page pageid="170" ns="6" title="Fil:13Övn7 3egradspol.jpg" />
      <page pageid="184" ns="6" title="Fil:14Rat fkt utan med disk.jpg" />
      <page pageid="193" ns="6" title="Fil:14ay Förkort Förläng 2 1 disk.jpg" />
      <page pageid="287" ns="6" title="Fil:14f Förkort Diskont.jpg" />
      <page pageid="2194" ns="6" title="Fil:1 6 Euler xplusya.jpg" />
      <page pageid="2185" ns="6" title="Fil:3.5 Diffekvationer Facit.pdf" />
      <page pageid="2184" ns="6" title="Fil:3.5 Diffekvationer Ovn.pdf" />
      <page pageid="1855" ns="6" title="Fil:35 Rektangel i parabel.jpg" />
    </pages>
  </query>
</api>