title: VBA: Skip cells in range
body: <p>I'm trying to fill formulas in column C like this: </p>
  
  <pre><code>LastRow = Range("A65536").End(xlUp).Row
  Range(Cells(1, 3), Cells(LastRow, 3)).Formula = "=A1*B1"
  </code></pre>
  
  <p>And it works fine. But is it possible to skip those cells in column C, which value is for example > 0 ?</p>
  
  <pre><code>A B C -&gt; A B C
  3 2 0    3 2 6
  3 4 0    3 4 12
  5 6 5    5 6 5  &lt;- this value is not updated
  </code></pre>