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Easy with Excel and Word! Mastering the art of address printing that anyone can do!

Have you ever had to worry about writing addresses for New Year's cards and summer greeting cards? Writing dozens of cards by hand is a lot of work, but buying specialized software is also a bit expensive.... Everyone has experienced this dilemma at least once. But the truth is, your computer...

2024.09.22

Excel Functions

SUMIF and SUMIFS Functions Excel

The SUMIF function can be used to change the contents of the total according to conditions, and the SUMIFS function can be used to specify multiple conditions. The reason why and how to use the SUMIF...

2024.07.04

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

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 Enable Excel Macros: Fix 'Macro Has Been Blocked' Error Safely

If you are having trouble running Excel macros, you have come to the right place. This article explains how to solve the red band message that appears in version 2203 and later. Actually, it can be easily solved by file saving and property settings. This article will help you solve the macro block problem completely.　

2025.06.12

WindowsExcel Macro (VBA)

Excel Clipboard Error: “The content cannot be copied because it is being used by another application” — Symptoms and Quick Fixes

Frustrated by the "File is in use by another application" error during copy and paste? This article provides a detailed explanation of the issue along with both quick fixes and long-term solutions to resolve it effectively.

2025.06.18

EdgeExcel Functions

For beginners] Explanation of causes of Excel being slow and countermeasures.

Manager, have you ever felt 'kind of heavy' when using Excel? Student Yes, sir! I recently started using Excel to improve my business, but I'm having trouble opening files because it takes so long. ManagerYes, that's right. Many people have the same problem...

2024.10.02

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

VLOOKUP function gives #N/A or #REF!

The VLOOKUP function is a very useful function for handling data, but many of you may have experienced that once you get stuck in the error swamp of #N/A or #REF! In this article, we will discuss how to use the VLOOKUP function to get rid of the #N/A and #REF!

2024.07.05

Excel Functions

What does the error message "#VALUE!" mean and what can I do about it?

Error messages are unavoidable when dealing with Excel, and you may be surprised when they suddenly appear. Here are the meanings and countermeasures for these errors. As an example of preconditions, let's make a table like this...

2024.05.30

Excel Functions