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>
    <querypage qpoffset="10" />
  </query-continue>
  <query>
    <querypage name="Ancientpages">
      <results>
        <page value="20170916160530" timestamp="2017-09-16T16:05:30Z" ns="0" title="Dane eksploatacyjne" />
        <page value="20170916192136" timestamp="2017-09-16T19:21:36Z" ns="0" title="Płyn hamulcowy - wymiana" />
        <page value="20170917083632" timestamp="2017-09-17T08:36:32Z" ns="0" title="Budowa skrętu" />
        <page value="20170917083957" timestamp="2017-09-17T08:39:57Z" ns="0" title="Hamowanie" />
        <page value="20170917125208" timestamp="2017-09-17T12:52:08Z" ns="0" title="Przeglądy okresowe - co ile km, co robimy" />
        <page value="20170917174902" timestamp="2017-09-17T17:49:02Z" ns="0" title="Świece zapłonowe" />
        <page value="20170917192631" timestamp="2017-09-17T19:26:31Z" ns="0" title="Amortyzator tylnego zawieszenia - sprawdzenie" />
        <page value="20170918152328" timestamp="2017-09-18T15:23:28Z" ns="0" title="Klocki hamulcowe - wymiana" />
        <page value="20170918160046" timestamp="2017-09-18T16:00:46Z" ns="0" title="Płyny Hamulcowe" />
        <page value="20170918160310" timestamp="2017-09-18T16:03:10Z" ns="0" title="Łożyska przód - wymiana" />
      </results>
    </querypage>
  </query>
</api>