title: FileSaver.js with a dialog
body: <p>I am using the <a href="https://eligrey.com/demos/FileSaver.js/" rel="nofollow noreferrer">FileSaver.js</a> to download file using the code below. This file is automatically downloaded to a default folder (Tested in Chrome), but I need to show a window dialog that says something like "Save as file...". Thanks!</p>
  
  <pre><code>var blob = new Blob([data], {type: "application/vnd.openxmlformatsofficedocument.spreadsheetml.sheet"});
  saveAs(blob, "file.xlsx");
  </code></pre>