In this article, you'll learn how to use conditional formatting in Excel to automatically change cell colors when a value entered doesn't match the dropdown list. If you've been struggling with errors during data aggregation using the VLOOKUP function, you're not alone. Fortunately, combining the MATCH and ISNA functions offers a simple and effective solution.

Error messages are unavoidable when dealing with Excel, and you may be surprised when they suddenly appear. Here are the meanings and countermeasures for these errors. As an example of preconditions, let's make a table like this...

When dealing with numbers in Excel, it often happens that the sharpness of the numbers becomes "######" as shown in the title, and the value becomes unreadable. The conclusion is that the reason for the "#####" is that the length of the value is larger than the size of the cell, making it impossible to display...