Not a must
A word/s linked to an URL
A database link
All of the above
II and III only
I, II, III
You can only enter one color combination for one sender.
You can enter the same color combination for two senders.
You can enter the same color for three senders.
You can enter more than one name for each color combination.
No blank columns or rows.
You have to have your data organized in columns with headings.
Consistent data in all cells (e.g. date column should contain dates or blank).
All of your rows should have a category.