title: Pass row number as variable in excel sheet
body: <p>Suppose I have: </p>
  
  <ol>
  <li>a value of 5 in <code>B1</code></li>
  <li>I want to pass the number (5) in <code>B1</code> as a row variable, which will be read in conjunction with column <code>A</code> into another cell (say <code>C1</code>) as "=A(B1)" i.e. "=A5"</li>
  </ol>
  
  <p>How would I do this?</p>