When using the sheet protection function, there is a function that allows detailed usage such as "allow selection and input in this range of cells, but not in other cells". For example, let's say you have a system that automatically creates transfer data when you enter a company name and amount of money as shown below. In this example...

After you have created a great system or tool in Excel, do you ever have this fear when you want others to use it? What if someone accidentally breaks a formula... What if an important function is deleted? I only want to edit the cells I need, but...

This article explains how to link two dropdown lists in Excel. Are you struggling with how to display only employees relevant to the selected department after choosing it? Actually, you can easily link them using the INDEX and MATCH functions. An Excel expert will teach you how.