Have you ever had a situation where you applied an auto-filter and found that the auto-filter was only working on the 20th row, even though data was included up to the 100th row? In this article, we will introduce what you should check when you encounter such a situation. Auto filter aperture...

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...