title: Conditional formatting to hide cell content even when printed
body: <p>I would like to set up a conditional formatting setting that would hide the contents (the cell should look blank) if the cell's contents is equal to another cell. Does anyone know of a function to do this? I tried just making the font the same color as the background (gray, in this case), but unfortunately when this is printed, there is some sort of residue shadow left over from the text.</p>
  
  <p>Here is what happens when I do gray on gray (they are supposedly the same color):</p>
  
  <p><img src="https://i.stack.imgur.com/xf7R0.jpg" alt="Gray on gray still shows up"></p>
  
  <p>I am using Excel 2008 on the Mac.</p>