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How to apply mosaic (blur) Excel

When you are preparing a document or manual for external publication, you may need to refer to a web site or a screen where non-public information is visible. In such a case, you would like to put a mosaic like this on the non-public part. We will explain this method in detail in this issue...

2024.07.05

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 Hide Sheet Tabs in Excel – Fast & Easy

A must for Excel system creators and those considering preventing erroneous operations. This article explains with images how to hide sheet headings to prevent unexpected operations. In fact, it can be achieved with only a simple option setting. This article will help you create safe Excel files.

2025.06.11

Excel Functions

Name a cell Excel

There are many times when you need to refer to a cell with coordinates such as "=A1" or "=C50". However, when you try to get the value from another sheet or another book, the coordinates are not always the same.

2024.09.17

Excel Functions

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 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

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)

How to Auto-Resize Excel Columns and Rows with VBA Macros (Copy-Paste Ready)

Struggling with cell misalignment or manual resizing in Excel? This article shows how to efficiently adjust row height and column width using VBA—solved in just a few lines of code by a seasoned macro expert.

2025.06.27

Excel Macro (VBA)

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 Round Time to 15-Minute Intervals in Excel (Easy Formula Guide)

Struggling with time rounding in Excel? This guide shows you how to combine TIME and ROUND functions effectively. Simple techniques that boost productivity. Master time rounding calculations with ease.

2025.07.15

Excel Functions