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Excel: Color Cells When Input Doesn’t Match Dropdown List

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.

2025.06.11

Excel Functions

How to Enable Excel Macros: Fix 'Macro Has Been Blocked' Error Safely

If you are having trouble running Excel macros, you have come to the right place. This article explains how to solve the red band message that appears in version 2203 and later. Actually, it can be easily solved by file saving and property settings. This article will help you solve the macro block problem completely.　

2025.06.12

WindowsExcel Macro (VBA)

Macro suddenly stopped working Excel(Excel) Macro(VBA)

I have been experiencing a phenomenon around me where macros suddenly stop working after having been used normally until yesterday. The phenomenon is that I had set up a macro that is activated by double-clicking on a specific cell, but it no longer responds when double-clicked. I went to "Develop..." to check the contents of the macro.

2024.02.26

Excel Macro (VBA)

How to Hide Sheet Tabs in Excel – Fast & Easy

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.

2025.06.11

Excel Functions

VLOOKUP function gives #N/A or #REF!

The VLOOKUP function is a very useful function for handling data, but many of you may have experienced that once you get stuck in the error swamp of #N/A or #REF! In this article, we will discuss how to use the VLOOKUP function to get rid of the #N/A and #REF!

2024.07.05

Excel Functions

Error display "#DIV/0!" Meaning and Countermeasures Excel

Error messages are unavoidable when dealing with Excel, and you may be surprised when they suddenly appear. If you know the meaning of the error and what to do about it, there is nothing to be afraid of. Meaning of "#DIV/0!

2024.05.30

Excel Functions

Automatically create invoices from sales invoices3 Excel (Excel)

Continuing from the previous article, "Creating Invoices Automatically from Sales Statements 2: Excel," we will now move on to creating invoices. If you haven't read it yet, please also read "Creating Invoices Automatically from Sales Statements 1: Excel". Putting details on an invoice (using a macro)...

2024.05.16

Excel Macro (VBA)Let's make an invoice from a sales invoice.

How to extract characters before a specific character "LEFT and FIND functions in Excel"

As shown in the figure below, if there is extra data after the string and you want to extract only the string to the left of the extra data, you cannot simply use the LEFT function alone because the number of characters is not constant. Function to extract the left side of the "¥" mark in cell "A2" = LEFT(A2,FIND(...))

2025.02.19

Excel Functions

Excel Clipboard Error: “The content cannot be copied because it is being used by another application” — Symptoms and Quick Fixes

Frustrated by the "File is in use by another application" error during copy and paste? This article provides a detailed explanation of the issue along with both quick fixes and long-term solutions to resolve it effectively.

2025.06.18

EdgeExcel Functions

Forgot Password] How to remove sheet protection Excel (Excel)

I have a "sheet-protected" Excel file that I really need to unprotect, but the person in charge of applying the protection has already left the company or lost the memo, and I don't know the password. In such cases, do I have no choice but to give up? No, you can...

2024.10.29

Excel Functions