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How to Disable the Copilot Icon in Excel (4 Simple Ways)

Many of you may have recently started seeing a "Copilot" icon like the one above in Excel. Copilot has many convenient features, but it can be annoying when it constantly pops up every time you select a cell. So, this time...

2026.07.07

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

How to Instantly Convert Address Numbers to Kanji Using SUBSTITUTE in Excel.

When printing addresses on envelopes using the address list of a New Year's card or a customer list, for example, horizontal envelopes are written in arithmetic (Arabic) numerals such as "1, 2, 3", while vertical envelopes must be written in Chinese numerals such as "1, 2, 3". Substitute the numbers...

2024.09.20

Excel Functions

Automatically create invoices from sales invoices1 Excel (Excel)

There are many useful software systems that automatically output invoices as you record sales data if you pay for them, but many people are unable to install software because they "don't have enough money to pay for it" or "management won't allow it" and are making each invoice by hand...

2024.06.10

Excel FunctionsLet's make an invoice from a sales invoice.

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 export a document created in Excel as a PDF

A must-see for those who want to export Excel documents as PDFs! You can export PDFs using only Excel's built-in features, without needing other software.

2026.07.08

WindowsExcel 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

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

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 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