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How to display time in 15-minute increments (CEILING and FLOOR functions) Excel

In the last issue, we introduced how to use the TIME function to display the time in 15-minute increments, 30-minute increments, etc. (TIME function) Excel pointed out that it would be easier to use the CEILING and FLOOR functions...

2024.06.18

Excel Functions

The two reasons for garbled csv files and how to fix them [Thorough explanation by an Excel master] Windows version.

"Huh? What is this?" Have you ever opened a CSV file in Excel only to find that the text in the file is a series of unintelligible symbols? Yes, you are now facing a troublesome problem called "garbled characters," which is a common problem that many people suffer from...

2024.09.12

Excel Functions

How to set up read-only and password Excel (Excel)

Here is how to set Excel to read-only or set a password when opening. Display the General Options screen First, display the "Save As" screen. On the Excel screen, click the "File" tab, then click "Save As," then click "...

2024.01.10

Excel Functions

About Variable Types Excel(Excel) Macro(VBA)

This section explains the types used when declaring variables in "Dim Variables". Here are some typical types of variables that you only need to remember. I almost always use only these. Variable typeThe range of data that can be storedstring stringlong integer (-2,14...)

2024.06.14

Excel Macro (VBA)

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 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

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 Use Wavy Lines to Crop or Skip Part of an Image in Excel

Master the wavy line technique to compress images in Excel! Step-by-step tutorial showing how to create professional image breaks and save space in your spreadsheets and presentations.

2025.08.07

Excel Functions

What is an Excel (Excel) Macro (VBA) Module and Procedure?

When dealing with VBA, you will come across terms such as modules and procedures, which are not used in everyday life. So, here I will explain about modules and procedures. Modules include standard modules, book modules, sheet modules, fo...

2023.12.27

Excel Macro (VBA)

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.