I'll show you how to learn this excel trick in 10 minutes or less, this is a sample of something very close to a work assignment today that I was asked to do, basically a practical and easy example of how you'd add a password to protect cells, leave some cells editable, & how to add a quick & easy timestamp for both the date and hour down to the second. Works in both excel 2019 & microsoft office 365! In this tutorial we'll go through ways you can add easy timestamps, protect your work, and more. If you'd like to do this with a drop down menu that's possible as well, really it's whatever limits we want to impose on excel.