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Forgot Password? How to Remove Read-Only (Write Protection) in Excel

If you forgot your Excel password, don’t worry! This article explains how to remove write protection easily by simply changing the file extension. Learn how to unlock read-only mode fast.

2025.07.12

Excel Functions

How to use the input screen "InputBox" Excel Macro (VBA)

If you want to use values or arbitrary characters that do not exist in Excel, the "InputBox" is useful to easily create an input screen during macro execution. In this article, we will briefly explain how to use this "InputBox".

2025.02.21

Excel Macro (VBA)

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

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

For other variable types, please refer to Excel (Excel) Macro (VBA) about variable types. First, we will explain the basic usage of the variable type "Workbook".

2024.06.14

Excel Macro (VBA)

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

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

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)

Easy with Excel and Word! Mastering the art of address printing that anyone can do!

Have you ever had to worry about writing addresses for New Year's cards and summer greeting cards? Writing dozens of cards by hand is a lot of work, but buying specialized software is also a bit expensive.... Everyone has experienced this dilemma at least once. But the truth is, your computer...

2024.09.22

Excel Functions

How to Extract Data Using the VLOOKUP Function in Excel

Being able to use the VLOOKUP function will expand the range of data handling, and will help you be seen as an intermediate Excel user by beginners. In this article, we will show you how to use the VLOOKUP function, and how to use the INDEX and MATCH functions to compensate for the weaknesses of the VLOOKUP function...

2024.07.04

Excel Functions

What does the error message "#NAME?

Error messages are unavoidable when dealing with Excel, and you may be surprised when they suddenly appear. Here are the meanings and countermeasures for this error message. Meaning of "#NAME?

2024.06.05

Excel Functions