title: Excel =Column() giving #NAME? error
body: <p><code>=COLUMN()</code></p>
  <p>This was working fine yesterday but today it gives me <code>#NAME?</code> as the result rather than the column that the formula is in.</p>
  <p><a href="https://i.stack.imgur.com/IWllN.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/IWllN.png" alt="ColumnError" /></a></p>
  <p>What is going on today that's different from yesterday?</p>
  <hr />
  <p>Edit: Even more bizarrely if I enter the <code>=COLUMN()</code> using the fx (insert function) button then it works fine.</p>