title: Excel: VLOOKUP that returns true or false?
body: <p>In Excel we have the <code>VLOOKUP</code> function that looks for a value in a column in a table and then returns a value from a given column in that table if it finds something. If it doesn't, it produces an error. </p>
  
  <p>Is there a function that just returns true or false depending on if the value was found in a column or not?</p>