title: Excel references from fixed cell to column end?
body: <p>I need an excel formula that calculates the SUM of all column cells from a fixed level until the last cell in the column. Like : SUM from S5 to the last S cell.<br>
  I tried : <code>SUM(S5:S)</code> but doesn't work.  </p>
  
  <p>There is a cell with the number of lines. Can I use a variable in the formula like : <code>SUM(S5:S &amp; A1)</code> with A1 containing the number of lines ?</p>