title: excel - if cell is not blank, then do IF statement
body: <p>I have this simple statement in <code>excel</code>. I compare two dates. If the date 2 is greater than or equal to date 1, then I show <strong>1</strong>. If not, then I show <strong>0</strong>.</p>
  
  <p>However, I would like to apply this function <strong>only</strong> when the cells contains text:</p>
  
  <pre><code>IF(NOT(ISBLANK((Q2&lt;=R2;"1";"0")))
  </code></pre>
  
  <p>That gives me an error - what am I doing wrong?</p>