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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

Measure macro processing time Excel(Excel) Macro(VBA)

When trying to speed up a macro, it is first necessary to be able to determine how much time was saved before and after the improvement, and how much time was saved or not. To do this, it is necessary to be able to measure the time. In this article, we will show you how to do this. In this article, we will discuss the process of...

2024.01.03

Excel Macro (VBA)

Excel to allow entry of items not in the pull-down (drop-down) list

When using the pull-down entry function in Excel with the default settings, if you try to enter an item that is not in the list prepared for entry, an error message like the one shown below will appear and you will not be able to enter the item. In such a case, you can either allow any item to be entered, or display a message...

2025.06.11

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

How to Adjust Column Width and Row Height in Excel (Manual Methods Explained)

Visibility is very poor if the column widths are too narrow to display all of the cell contents, or the row height is too narrow to display the contents. In this article, we will explain how to easily and automatically adjust row height and column width to just the right size. With a macro (VBA)...

2025.05.29

Excel Functions

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

[For Beginners] Step-by-Step Guide to Installing SeleniumBasic

This article offers a beginner-friendly, detailed guide to installing SeleniumBasic. Stuck on the installation and thinking about giving up on automation? The truth is, anyone can install it by taking it one step at a time. A professional with 20 years of experience teaching Excel will walk you through the process.

2025.06.16

Excel Macro (VBA)

Excel: Color Cells When Input Doesn’t Match Dropdown List

In this article, you'll learn how to use conditional formatting in Excel to automatically change cell colors when a value entered doesn't match the dropdown list. If you've been struggling with errors during data aggregation using the VLOOKUP function, you're not alone. Fortunately, combining the MATCH and ISNA functions offers a simple and effective solution.

2025.06.11

Excel Functions

Switch between manual and automatic recalculation methods in Excel (Excel)

Excel, which contains a large number of formulas, will recalculate each time you perform some operation, and you will not be able to perform the next operation until the calculation is finished. If you feel that Excel is too slow, you can stop the recalculation to make it run more smoothly. Also, for some reason without realizing it...

2024.05.30

Excel Functions

Linking two pull-downs (drop-downs) without macros (when reflected in multiple rows) Excel (Excel)

Excel複数行連動プルダウンを作りたい人は必見！この記事ではマクロなしで複数行のドロップダウンを連動させる方法を詳しく解説します。実はINDIRECT関数と名前定義で簡単に実現できるんです。この記事を読めば効率的な一覧表が作れます。

2025.06.09

Excel Functions