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In this example, the goal is to sum the amounts in column C by week, using the dates in the range E5:E10 which are all Mondays. All data is in an Excel Table named data in the range B5:C16. This problem can be solved in a straightforward way with the...Read more

In this example, the goal is to use a single formula to extract high-value projects and list them in a simple table. We also want to remove unnecessary columns to create a clean, uncluttered view. The solutions explained below are based on a combination of several functions in Excel, including...Read more

In May 2025, I ran a survey asking Exceljet newsletter subscribers what version of Excel they use most. This is an important question for Excel learning because the new dynamic array engine has completely changed how many formulas are written. These changes started rolling out after Excel...Read more

In this example, the goal is to generate a list of "nth weekdays of the month" with a formula. For example, the formula should be able to create a list of any of the following:

• 2nd Tuesdays of the month
• 1st Fridays of the month
• 3rd Mondays of the month
...Read more

In this example, the goal is to sum the largest n values in a set of data, where n is a variable that can be easily changed. For convenience, the range B5:B16 is named data. At a high level, the...Read more

In this example, the goal is to extract the last name from names that appear in <first> <middle> <last> format, where the middle name is not always present. The easiest way to do this is with the newer TEXTAFTER function. In older versions of Excel, you can use a significantly...Read more

In this example, the goal is to remove the last word from the text strings in column B. This article explains two approaches:

1. A modern formula based on the TEXTBEFORE function.
2. A more traditional formula for older versions in Excel
...Read more

The goal is to combine data from different worksheets with a formula. Note that we are not restructuring the data in any way, we are simply combining data in different worksheets that already have the same structure. At a high level, the formula we are using combines data from multiple sheets...Read more

The goal is to generate a series of dates one year apart. In the current version of Excel, the easiest way to do this is with the SEQUENCE function together with the DATE, YEAR, MONTH, and DAY functions. In older versions of Excel, you can use the same date functions and a more manual approach....Read more

In this example, the goal is to sum every nth value in a range of data, as seen in the worksheet above. For example, if n=2, we want to sum every second value (every other value), if n=3, we want to sum every third value, and so on. All data is in the range B5:...Read more

The goal is to retrieve the nth matching record in a set of data, after filtering on a specific product. In the worksheet shown, the product in H4 and the value for n in H5 are inputs that can be changed at any time. For instance, if the product in H4 is "A" and the value in H5...Read more

In the example shown, we have a list of amounts in column C. The goal is to dynamically sum the last n amounts using the number that appears in cell E5 for n. Since the list may grow over time, the key requirement is to sum amounts by position...Read more

At a high level, this formula uses a nested IF function to return an array of holidays between two dates. This array is then processed by the TEXTJOIN function, which converts the array to text using a comma as the delimiter.

Working from the inside out, we generate the array of...Read more

In this example, the goal is to generate a list of random numbers without duplicates. This involves jumping through a few hoops because although the RANDARRAY function can easily generate a list of random integers, there is no guarantee that the numbers will be unique. In the explanation below,...Read more

In this example, the goal is to perform a case-sensitive lookup on Color with VLOOKUP. In other words, a lookup value of "RED" must return a different result from a lookup value of "Red". This presents several challenges. First, Excel is not case-sensitive by default...Read more

In the worksheet shown, we have a list of values in column C. The goal is to dynamically average the last n values using the numbers in cell E5 for n. Since the list may grow over time, the key requirement is to average amounts by position....Read more

At the core, this formula looks for a line delimiter ("delim") and replaces it with a large number of spaces using the SUBSTITUTE and REPT functions.

Note: In older versions of Excel on a Mac, use CHAR(13) instead of CHAR(10). The CHAR function...Read more

The first COLUMN function generates an array of 7 numbers like this:

{2,3,4,5,6,7,8}

The second COLUMN function generates an array with just one item like this:

{2}

which is then...Read more

In this example, the goal is to get the minimum value for a given group above a specific temperature. In other words, we want the min value after applying multiple criteria. The easiest way to solve this problem is with the MINIFS function. However, if you need more flexibility (for...Read more

The goal is to generate a series of sequential dates with a formula. In the current version of Excel, the easiest method is to use the SEQUENCE function. SEQUENCE can return all dates at the same time into a range on the worksheet. In older versions of Excel without the SEQUENCE function, you...Read more

In this example, the goal is to sum every nth value by column in a range of data, as seen in the worksheet above. For example, if n=2, we want to sum every second value by column, if n=3, we want to sum every third value by column, and so on....Read more

In this example, the goal is to use XLOOKUP to find the first "red" or "pink" record in the data as shown. All data is in an Excel Table named data in the range B5:E14. This means the formulas below use structured...Read more

In this example, the goal is to calculate the maximum value that occurs in a set of data on a given weekday (i.e. Monday, Tuesday, Wednesday, Thursday, Friday). In the current version of Excel, the simplest approach is to use the FILTER function. In older versions of Excel, you can use a...Read more

In this example, the goal is to add days to a date. This is a frequent task in Excel when you need to calculate a new date by adding a specified number of days to an existing date.  Here are some examples of situations where this might be useful:

• Calculate a due date by
...Read more

In this example, the goal is to join two one-dimensional ranges together horizontally. This can be done with the CHOOSE function and array constant.

The CHOOSE function

The CHOOSE function is used...Read more