title: UTF-8 characters missing or displayed as boxes in Notepad, but works fine in webbrowser and other text editors
body: <p>I have UTF-8 text stored in DB and served as <code>text/plain; charset=utf-8</code> in a web application. All the things are working fine. I can see the UTF-8 text on browser window without any problem. </p>
  
  <p>But when I save that text to a file and try to open it in Windows Notepad, I got some characters missing and displayed as a small rectangular box. However, the text file looks fine in other editors like EditPlus and Notepad++.</p>
  
  <p>How is this caused and how can I solve it?</p>