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>
    <blocks bkcontinue="20191119093620|140" />
  </query-continue>
  <query>
    <blocks>
      <block id="151" user="Юрцевич Елена" by="User" timestamp="2019-11-19T09:38:42Z" expiry="infinity" reason="" nocreate="" autoblock="" />
      <block id="150" user="Якимов Игорь" by="User" timestamp="2019-11-19T09:38:27Z" expiry="infinity" reason="" nocreate="" autoblock="" />
      <block id="149" user="Якимов" by="User" timestamp="2019-11-19T09:38:19Z" expiry="infinity" reason="" nocreate="" autoblock="" />
      <block id="148" user="Юлия Литовчук" by="User" timestamp="2019-11-19T09:37:54Z" expiry="infinity" reason="" nocreate="" autoblock="" />
      <block id="147" user="Щендрыгина Татьяна Васильевна" by="User" timestamp="2019-11-19T09:37:46Z" expiry="infinity" reason="" nocreate="" autoblock="" />
      <block id="146" user="Шкиренок Людмила Григорьевна" by="User" timestamp="2019-11-19T09:37:38Z" expiry="infinity" reason="" nocreate="" autoblock="" />
      <block id="144" user="Шестакина Елена Александровна" by="User" timestamp="2019-11-19T09:36:53Z" expiry="infinity" reason="" nocreate="" autoblock="" />
      <block id="143" user="Шевелева Марина Сергеевна" by="User" timestamp="2019-11-19T09:36:45Z" expiry="infinity" reason="" nocreate="" autoblock="" />
      <block id="142" user="Шапкунова Елена Александровна" by="User" timestamp="2019-11-19T09:36:37Z" expiry="infinity" reason="" nocreate="" autoblock="" />
      <block id="141" user="Чальян Инна Геннадиевна" by="User" timestamp="2019-11-19T09:36:29Z" expiry="infinity" reason="" nocreate="" autoblock="" />
    </blocks>
  </query>
</api>