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How to set up read-only and password Excel (Excel)

Here is how to set Excel to read-only or set a password when opening. Display the General Options screen First, display the "Save As" screen. On the Excel screen, click the "File" tab, then click "Save As," then click "...

2024.01.10

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 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

"How to Create Your First Excel Macro (Beginner’s VBA Guide)

To write a VBA, you start with the "Development" tab, which is not present by default. Click on the File tab, then click on the option...

2024.05.28

Excel Macro (VBA)

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)

How to display time in 15-minute increments (CEILING and FLOOR functions) Excel

In the last issue, we introduced how to use the TIME function to display the time in 15-minute increments, 30-minute increments, etc. (TIME function) Excel pointed out that it would be easier to use the CEILING and FLOOR functions...

2024.06.18

Excel Functions

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 Insert Rows in Excel Without Breaking Formulas

Having trouble with broken formulas after inserting rows in Excel? This article explains step-by-step how to fix them easily using formula copying—shared by an experienced Excel expert.

2025.06.18

Excel Functions

How to use Excel (Excel) INDEX and MATCH functions in combination

We will show you how to display the desired data by combining the INDEX function, which refers to data from a table on another sheet, and the MATCH function. How to Write the INDEX Function There are two ways to write the INDEX function. INDEX(array, row number,) INDEX(reference, row number, , )

2024.07.27

Excel Functions

[Forgot Password] How to Remove VBA (Macro) Passwords in Excel

A must-read for anyone who has forgotten their Excel password! This article explains in detail how to forcibly remove VBA passwords. In fact, you can easily remove it just by changing the file extension. By reading this article, you can escape read-only mode.

2026.07.10

Excel Macro (VBA)