title: Open iOS 11 Files app via URL Scheme or some other way
body: <p>My app is now sharing <code>Documents</code> directory on iOS 11 Files app "On My iPhone" section.</p>
  
  <p>(Thanks to this article: <a href="https://www.bignerdranch.com/blog/working-with-the-files-app-in-ios-11/" rel="noreferrer">Working with the Files App in iOS 11</a>)</p>
  
  <p>Question is how to open this directory or at least File app root page via URL Scheme. <code>UIDocumentPickerViewController</code> or <code>UIDocumentBrowserViewController</code> doesn't help in this situation.</p>