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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

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 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

[For Beginners] Detailed explanation of how to easily operate Edge/Chrome with VBA (summary)

Mr. Sato, is there any good way to import Web information into Excel? Ms. Sato, a student in the Excel course, asked the question with an enthusiastic expression. Manager, that's right. Actually, you can easily get information on the Web magically by using VBA... I have 20 years of Excel experience...

2024.10.02

Excel Macro (VBA)

Excel Macro (VBA): How to use the CountIfs function in VBA!　

If you are a beginner who wants to use Excel's COUNTIFS function in VBA, this is a must. This article provides a thorough explanation from basic writing to error handling. In fact, with a few tricks, you can reduce processing time from a few minutes to a few seconds. Read this article and you will be able to efficiently tabulate data from tomorrow.

2025.02.12

Excel Macro (VBA)

Insert rows without breaking formulas (using spil) Excel (Excel)

With Microsoft365 and Excel 2021 or later versions, you can insert, delete, and rearrange rows without breaking the formula by using a feature called Spill. In this article, we will show you a specific example...

2024.09.13

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 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)

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

How to Clear Sheet Data with Excel VBA: Simple Macro Tutorial for Beginners

Tired of manually deleting large amounts of Excel data? This article explains how to delete sheet data using VBA macros with ClearContents, Clear, and Delete—completing the task in seconds.

2025.06.18

Excel Macro (VBA)