title: Concatenate numbers separated by dash while keeping leading zeros
body: <p>I have two columns in Excel with leading zeros that I want to concatenate. The below code works perfectly. It concatenates the columns and retains the leading zeros from each column:</p>
  
  <pre><code>= A2&amp;B2
  </code></pre>
  
  <p>However, I need a dash between the values. When I alter the formula to the following the leading zeros to the right of the dash are removed:</p>
  
  <pre><code>= A2&amp;-B2
  </code></pre>
  
  <p>How do I add that dash while retaining all leading zeros?</p>