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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

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)

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

Automatically create invoices from sales invoices 2 Excel (Excel)

Creating Invoices Automatically from Previous Sales Statements1 Continuing from Excel (Excel), we will create an invoice. Putting the details on the invoice (using a function)*Using the "FILTER" function using Spil*This one uses the Spil function, so you will need to use Microsoft365 or E...

2024.06.10

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

Automatically create invoices from sales invoices3 Excel (Excel)

Continuing from the previous article, "Creating Invoices Automatically from Sales Statements 2: Excel," we will now move on to creating invoices. If you haven't read it yet, please also read "Creating Invoices Automatically from Sales Statements 1: Excel". Putting details on an invoice (using a macro)...

2024.05.16

Excel Macro (VBA)Let's make an invoice from a sales invoice.

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

How to correct "###" in cell display Excel (Excel)

When dealing with numbers in Excel, it often happens that the sharpness of the numbers becomes "######" as shown in the title, and the value becomes unreadable. The conclusion is that the reason for the "#####" is that the length of the value is larger than the size of the cell, making it impossible to display...

2024.06.05

Excel Functions

Excel RIGHT and LEFT functions to extract a specific number of characters from the right or left of a string

I want to display only the four characters from the right of the data entered in a cell, or I want to display the rest of the data without displaying the left few characters. Conversely, I want to display only 4 characters from the left of the data entered in a cell, or I want to display the rest of the data without displaying the few characters on the right. Thus...

2025.02.19

Excel Functions

How to set and remove sheet and book protection Excel (Excel)

If you are thinking about preventing Excel mishaps, this is a must! This article details how to set up and remove sheet and book protection. In fact, you can easily set it with a password. This article will help you protect your important data.

2025.06.06

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