title: Insert Minus Sign In Each Cell In A Column
body: <p>I really need some help with this one.</p>
  
  <p>I have searched high and low but cannot find a solution.</p>
  
  <p>I have a column '<strong>B</strong>' with around 16,000 rows. Each row contains both text and numbers. (See example)</p>
  
  <p>I need to insert a minus sign in front of each one. How can I do this quickly?</p>
  
  <pre><code>**B**
  image
  00020900(1).JPG
  373024H.JPG
  And So On
  </code></pre>
  
  <p>I want the end result to look like this <code>-00020900(1).JPG</code></p>
  
  <p>I need a quick formula or Macro to achieve this for each cell in column B.
  Thanks</p>