title: Excel/VBA: Passing a single cell as argument
body: <p>I want to make my custom VBA function accept only a single-cell argument. What is the rightway of doing it:</p>
  
  <ul>
  <li>pass <code>myCell as Cell</code></li>
  </ul>
  
  <p>or:</p>
  
  <ul>
  <li>pass <code>myRange as Range</code> and get (how?) the left-upper cell by default?</li>
  </ul>