title: Excel UNIQUE Across Columns
body: <p>Is it possible for the new function <code>UNIQUE</code> to be used across various columns &amp; have the output spill into a single column?</p>
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  <p>Desired output is <code>UNIQUE</code> values in one single column based on all of the values present in <code>Columns: A, B, &amp; C</code> (<em>duplicates in red</em>)</p>
  <p><a href="https://i.stack.imgur.com/3rUbj.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/3rUbj.png" alt="enter image description here" /></a></p>