This template includes a sampling of Excel guidelines that are tied back to a central theme which allows you to easily update all the colors and fonts at once. It includes 14 pages of examples laid out in a printable format.
You can watch an overview and tutorial below which explains the core principles and how to make updates.
This is ideal for anyone trying to build out their own Excel guidelines or documentation but it's also a great tool for learning about the capabilities of Excel themes and understanding how they can keep your work consistent (and save you a ton of time updating colors/fonts!).
Customizing Excel themes is only available on PC but basic theme color and font changes can be made on Mac. Luckily any theme you make on a PC can be used on Macs, so compatibility should not be an issue.