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>
    <allredirects garcontinue="Windows_8:_Rotate_screen" />
  </query-continue>
  <query>
    <pages>
      <page ns="0" title="Mac OSX: Clear Browser Cache" missing="" />
      <page pageid="1425" ns="0" title="Change or Delete iPhone Signature: Sent from my iPhone" />
      <page pageid="547" ns="0" title="Excel 2013 Shortcut: Launch the Format cells dialog box" />
      <page pageid="1491" ns="0" title="IPad: Change device name" />
      <page pageid="1416" ns="0" title="IPhone: Disable or enable recent contacts in App Switcher" />
      <page pageid="383" ns="0" title="LG G3: Hard Reset (Factory Reset)" />
      <page pageid="30" ns="0" title="No Windows 8.1 Update in the Windows 8 Store (Solved)" />
      <page pageid="1281" ns="0" title="Windows 10: Show or hide favorites folders in File Explorer" />
      <page pageid="1766" ns="0" title="Windows 8.1: How to Enable or Disable Camera on Lock Screen" />
      <page pageid="2348" ns="0" title="Windows 8: How to Enable or Disable Camera on Lock Screen" />
    </pages>
  </query>
</api>