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Latest videos

Tip: How to build a simple dynamic chart
In this video, we look at how to build a chart that automatically includes new data, and dynamically highlights the top and bottom values. This is an easy way to create an interactive chart...
Run time: 3:56
Tip: How to use the CHOOSE function
In this video, we'll look at how you can use the CHOOSE function for simple lookups. The CHOOSE function doesn't need an external table, and can sometimes replace more complicated...
Run time: 3:41
Tip: How to generate random values
In this video, we'll look at a few ways to generate random values with the RANDBETWEEN function. You can use this approach to generate random numbers, random prices, random dates, and...
Run time: 3:39
Tip: How to copy a pivot table without the data
When you copy and paste a pivot table, a hidden data cache still remains. This video shows a simple way to copy a pivot table without the source data, while preserving all formatting.
Run time: 2:45
Tip: How to group a pivot table with custom buckets
Pivot tables are awesome tools for grouping data, and they do a lot of grouping automatically. But pivot tables also let you group data into your own custom buckets, which is great for...
Run time: 2:45

Latest Blog

Excel data validation guide
Data validation can help control what a user can enter into a cell. You could use data validation to make sure a value is a number, a date, or to present a dropdown menu with predefined choices to a user. This guide provides an overview of the data validation feature.
Generate weekend dates only with a simple formula
Sure, you can use a complicated WEEKDAY formula to generate a list of weekends. But with WORKDAY.INTL, you can do the same thing with a WAY simpler formula. The trick is to use a special 7-digit "mask" to filter out all dates except weekends.

You have a fixed monthly payment, a start date, and a given number of months. You have five years shown on the worksheet. What formula can you use to sum total payments by year?

Friendly, dynamic messages with concatenation
In this article, we explain how to use concatenation to display friendly and useful messages in your spreadsheets. The messages are dynamic and respond instantly to changes, so the effect is polished and professional.
Use the EOMONTH function to get the last day of a month
The EOMONTH function is one of those little gems in Excel that can save you a lot of trouble. It's a simple function that does just one thing: given a date, it returns the last day of a month. You can use EOMONTH to build all kinds of useful Excel formulas.

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