1. 1

    How would you force a user to only enter a valid date in cell C1?

  2. 2

    If you wanted to set up a message that pops up every time the user selects a specific cell, how would you do it?

  3. 3

    What would be the most likely cause of the following error message appearing in Excel? “The value you entered is not valid. A user has restricted the values that can be entered into this cell.”