title: How to display (or write to file) Greek characters?
body: <p>How to display (or write to file) Greek characters using C#? I need to type the Greek character <em>epsilon</em> in Excel using C#. The string to be written also has English characters.
  For example:</p>
  <p><img src="https://i.stack.imgur.com/tTTl3.png" alt="enter image description here" /></p>