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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

The two reasons for garbled csv files and how to fix them [Thorough explanation by an Excel master] Windows version.

"Huh? What is this?" Have you ever opened a CSV file in Excel only to find that the text in the file is a series of unintelligible symbols? Yes, you are now facing a troublesome problem called "garbled characters," which is a common problem that many people suffer from...

2024.09.12

Excel Functions

Digital certificate can no longer be selected when logging in to a site (Edge)

Have you ever seen the following error message when using login with a digital certificate? The certificate you have selected is not available for this service. Please close all browser windows and try again. Internet ban...

2024.08.02

Edge

How to Use Excel (Excel) Pull-Downs (Drop-Downs): How to Streamline Data Entry in a Few Simple Steps

By selecting items from pull-down menus instead of entering them freely, you can save time and effort in entering data, and you can also improve the reliability of data by preventing distortions in the notation. Preventing distortions in the notation allows the same data to be recognized as the same when tabulating data, so it can be used in Excel....

2024.11.11

Excel Functions

VBA "Overflow occurred." Error cause and remedy (runtime error '6′:)

Cause of ErrorThis error occurs when the data type is not in a format that can be handled, or when the data type exceeds the range of numbers that can be handled. First, let's reproduce the error. As shown in the figure above, we have set up the code to copy the numeric value in cell "B3" to cell "B4".

2024.10.10

Excel Macro (VBA)

Locking cells to protect only a specific range of sheets Excel (Excel)

When using the sheet protection function, there is a function that allows detailed usage such as "allow selection and input in this range of cells, but not in other cells". For example, let's say you have a system that automatically creates transfer data when you enter a company name and amount of money as shown below. In this example...

2024.10.08

Excel Functions

How to Convert Excel to Google Sheets (Step-by-Step Guide for 2025)

This article provides a detailed, beginner-friendly explanation of how to convert Excel files into Google Sheets. Are you struggling because a client has asked you to submit your data in Google Sheets format? The truth is, the conversion process is easier than you might think. Written by someone with experience in streamlining IT workflows, this guide walks you through the steps clearly and practically.

2025.06.05

googlesheet

PrintOut" printer and automatic printing Excel(Excel) macro(VBA)

Have you ever had the experience of printing the same Excel file every time, only to have to set it up again and again? Have you ever had such an experience? Many people spend a lot of time on Excel printing. Especially in an environment where multiple printers are used, it is a big hassle to change print settings...

2025.06.18

Excel Macro (VBA)

Get the full path (save location and file name) of the opened Excel file "FullName" Excel (Excel) Macro (VBA)

There are many situations where it is useful to be able to retrieve the location of the Excel file you are currently operating on when you are trying to retrieve values from another Excel file or save a file as a name using a macro. In this article, we will show you how to use the "FullName" command, which is useful in such cases. The currently open...

2024.05.30

Excel Macro (VBA)

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