A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data
Select the range in which the users will enter the date.
- On the home tab of the ribbon, click Conditional Formatting > New Rule...
Select 'Format only cells that contain'.
Leave the first drop down set to 'Cell Value'.
Select 'less than or equal to' from the second drop down.
In the box next to it, enter the formula
=TODAY()
Click Format...
Activate the Fill tab.
Select green as highlight color.
Click OK, then click OK again.
- Repeat these steps, but with the formula
=TODAY()-8
and yellow as fill color.
- Repeat them again with the formula
=TODAY()-15
and red as fill color.
- Finally, repeat them with 'equal to', with the formula
=""
and No Color.