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How to display file extensions [Windows 11].

For the beginning computer user, there may be little trouble with file extensions not being displayed. However, once you have started to tinker with computers to some extent, there are situations where you may need to change the file extension or process a file differently depending on its extension, so this...

2024.10.08

Windows

Name a cell Excel

There are many times when you need to refer to a cell with coordinates such as "=A1" or "=C50". However, when you try to get the value from another sheet or another book, the coordinates are not always the same.

2024.09.17

Excel Functions

Excel (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

For beginners] Explanation of causes of Excel being slow and countermeasures.

Manager, have you ever felt 'kind of heavy' when using Excel? Student Yes, sir! I recently started using Excel to improve my business, but I'm having trouble opening files because it takes so long. ManagerYes, that's right. Many people have the same problem...

2024.10.02

Excel Functions

How to Find the Last Row in Excel Using VBA (Macro Guide for Beginners)

We show you how to find the data from the top of the data and how to start from the bottom row of the Excel file and work your way up.

2025.05.30

Excel Macro (VBA)

How to use the sheet protection function.

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...

2024.10.08

Excel Functions

What does the error message "#VALUE!" mean and what can I do about it?

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...

2024.05.30

Excel Functions

The Complete Guide to IF AND in VBA｜Thorough explanation from basic syntax to practical techniques

I want to combine IF and AND statements in VBA, but I don't know how to write it..." I have experienced such a problem. Actually, the way to write it is a little different from the IF function in Excel. In my 20 years of Excel work, I have used IF AND in VBA to automate many tasks...

2025.02.12

Excel Macro (VBA)

How to use the property of variable type "Workbook" Excel (Excel) Macro (VBA)

You can read more about how to use the variable type "Workbook" in this blog. How to use the variable type "Workbook" Excel(Excel)Macro(VBA)Here we will explain the "Workbook" property in a little more detail.Wo...

2024.06.14

Excel Macro (VBA)

How to Change Digital Certificate Display Names in Microsoft Edge for Easy Identification

How to Change Digital Certificate Names in Edge | Stop Certificate Confusion. Set friendly names for easy identification. Step-by-step guide to distinguish multiple certificates in Microsoft Edge browser.

2025.07.03

Edge