Excel BYROW and BYCOL Functions

Find out how you can use the new Excel BYROW and BYCOL functions. These are called Lambda helper functions and they can help you save a lot of time if your analysis is based on a whole row or an entire column. Check out this practical example to find out more.

Excel Add Text to Values

You can easily add text to your cell values in Excel. You don't have to do this manually. You have 3 easy options to choose from. The 3rd one will surprise you. You can use it in many other circumstances as well.

SUMIFS Multiple Criteria in a Single Column

Learn how to sum values based on multiple criteria in a single columns. You probably know that you can use SUMIFS to sum values based on criteria from multiple columns. But there is also an easy way you can sum values if your criteria is in the same column.

Calculate Working Days in Excel Exclude Some Days

Learn how to calculate the difference between days in Excel and exclude any week days, weekends and holidays. It's easy to exclude weekends and holidays, but how do you exclude ANY weekday of your choice? Check out the complete blog post because there's a trick you can use.

Excel Generate Random Numbers

This tutorial shows you different methods to generate random numbers in Excel (including no repeats). You might need random numbers if you're preparing test data. Or if you need to share your files with consultants and have to replace official values with random ones.

Excel Calculate Ratios

Easily calculate the ratio of two numbers in Excel with Excel formulas. Ratios are a common way to compare amounts. To calculate ratios you need to calculate the highest common factor. You can easily do this with the GCD function.

Excel Formulas and Functions

Learn how to use Formulas and Functions in Excel. I'll show you an Excel trick that will make it easier to find Excel functions and use them correctly. You'll learn how to use SUM, COUNT, COUNTA, AVERAGE, MAX, MIN and also more complex functions like AVERAGEIFS.


The StockHistory Function in Excel allows you to easily pull historical stock data in Excel with a single formula. You can get daily, weekly or monthly data. Find out how to use this together with sparklines to visualize the trend of different stocks in one view.

Excel Hash Sign in Formulas

What is the Hash sign (#) in Excel formulas and when should you use it? The hash sign was the best addition to Excel and you SHOULD be using it. But most people use it wrong! Check out this post to learn when and why you should use the pound sign in your formulas.

Excel SPILL Error

What is the Excel Spill error and how can you fix it? Sometimes it's obvious but sometimes it's not clear why you get this error. Find out why and how to fix it in this article.