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...

When you are preparing a document or manual for external publication, you may need to refer to a web site or a screen where non-public information is visible. In such a case, you would like to put a mosaic like this on the non-public part. We will explain this method in detail in this issue...

A must for Excel system creators and those considering preventing erroneous operations. This article explains with images how to hide sheet headings to prevent unexpected operations. In fact, it can be achieved with only a simple option setting. This article will help you create safe Excel files.