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How to Disable the Copilot Icon in Excel (4 Simple Ways)

Many of you may have recently started seeing a "Copilot" icon like the one above in Excel. Copilot has many convenient features, but it can be annoying when it constantly pops up every time you select a cell. So, this time...

2026.07.07

Excel Functions

How to display the Immediate Window Excel(Excel) Macro(VBA)

One of the skills that you will need to learn as you progress in your VBA studies is the skill of using Immediate Windows. To use it, you must first display the Immediate Window. In this article, we will explain how to display the Immediate Window...

2024.01.02

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

SUMIF and SUMIFS Functions Excel

The SUMIF function can be used to change the contents of the total according to conditions, and the SUMIFS function can be used to specify multiple conditions. The reason why and how to use the SUMIF...

2024.07.04

Excel Functions

How to Prefer Manual Fill to Conditional Formatting Excel (Excel)

Conditional formatting is a very useful feature that automatically fills in or changes formatting based on specified conditions. However, many of you may have experienced the problem that conditional formatting takes precedence over manual filling. In this article, we will discuss how to use conditional formatting...

2024.07.09

Excel Functions

About Variable Types Excel(Excel) Macro(VBA)

This section explains the types used when declaring variables in "Dim Variables". Here are some typical types of variables that you only need to remember. I almost always use only these. Variable typeThe range of data that can be storedstring stringlong integer (-2,14...)

2024.06.14

Excel Macro (VBA)

Excel to allow entry of items not in the pull-down (drop-down) list

When using the pull-down entry function in Excel with the default settings, if you try to enter an item that is not in the list prepared for entry, an error message like the one shown below will appear and you will not be able to enter the item. In such a case, you can either allow any item to be entered, or display a message...

2025.06.11

Excel 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...

2026.07.09

Excel Functions

How to install .NET FrameWork

What are the versions of the .NET Framework? NET Framework (DotNet Framework) comes in various versions (types of toolboxes) with slightly different tools inside...

2024.10.01

Excel Macro (VBA)

Excel RIGHT and LEFT functions to extract a specific number of characters from the right or left of a string

I want to display only the four characters from the right of the data entered in a cell, or I want to display the rest of the data without displaying the left few characters. Conversely, I want to display only 4 characters from the left of the data entered in a cell, or I want to display the rest of the data without displaying the few characters on the right. Thus...

2025.02.19

Excel Functions