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Excel (Excel) to automatically create a backup file every time you save

Here is how to automatically create a backup file every time you save Excel. 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 "So...

2024.01.10

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

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.

2026.07.09

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)

How to Use Wavy Lines to Crop or Skip Part of an Image in Excel

Master the wavy line technique to compress images in Excel! Step-by-step tutorial showing how to create professional image breaks and save space in your spreadsheets and presentations.

2025.08.07

Excel Functions

How to Adjust Column Width and Row Height in Excel (Manual Methods Explained)

Visibility is very poor if the column widths are too narrow to display all of the cell contents, or the row height is too narrow to display the contents. In this article, we will explain how to easily and automatically adjust row height and column width to just the right size. With a macro (VBA)...

2025.05.29

Excel Functions

How to Fix Missing Sheets in Excel (Step-by-Step Guide)

This article explains how to solve the sheet heading hiding problem in Excel from the options settings. Have you ever had trouble finding a sheet in a file created by someone else? This article is written by the author, who has experience in supporting Excel operations.

2025.06.06

Excel Functions

How to correct "###" in cell display Excel (Excel)

When dealing with numbers in Excel, it often happens that the sharpness of the numbers becomes "######" as shown in the title, and the value becomes unreadable. The conclusion is that the reason for the "#####" is that the length of the value is larger than the size of the cell, making it impossible to display...

2024.06.05

Excel Functions

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

[SeleniumBasic bug] VBA (macro) suddenly stopped working in Excel

To those who have suddenly encountered an error and have had their system become unresponsive with SeleniumBasic. The cause may be the Windows Update "KB5127936" released on October 29, 2026. This article explains the mechanism of the cause and provides emergency measures to uninstall the update.

2026.11.05

EdgeExcel Macro (VBA)