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When working with dates, you'll sometimes find that you need to calculate the number of working (or business days) that have passed in...

I've always admired the way GitHub presents your contribution activity with a slick, heatmap-styled tracker. Let's create our own version...

When working with dates, you'll sometimes find that you need to calculate the number of working (or business days) in a month, from a...

There are lots of ways to convert decimal numbers into binary. Excel has a built in function for small numbers, but you'll need a custom...

There are two good ways of converting binary to decimal. Excel has a built in function for small numbers, but you'll need a custom...

Sometimes you find yourself wanting to start a cell with an "=", "-", or a "+" sign, but don't want Excel to create a formula. There are...

A regular, one-way XLOOKUP, is a fantastic tool, but sometimes you may find yourself needing to lookup a value in two different...

While the WRAPROWS function can be great to unstack a list with an even number of items, we'll need a custom formula to wrap, or unstack...

You'll often see names that are out of order, and need to flip them. Here are a couple quick formulas to help you accomplish that task....

Add an index column to any dynamic array using a few of the latest Excel functions for easy lookups. Contents: 1. Adding Index Column to...

Create a repeating list based off of a range and a specific numbers of repetitions. Contents: 1. Formula 2. Explanation Formula To...

A short formula you can use to calculate the number of days between two specific dates. Contents: 1. Formula 2. Explanation 3. Example...

An easy formula you can use to calculate the number of weekend days between two specific dates. Contents: 1. Formulas 2. Explanation 3....

A quick formula to calculate the number of weekend or non-working days remaining in the current month. Contents: 1. Formulas 2....

A quick formula to calculate the number of weekdays, business days, or working days remaining in the current month. Contents: 1. Formulas...

Using conditional formatting, we can use a custom formula to highlight all weekday dates from any date range, letting you visually see...

If you have ever gotten a report that looks like this, you know it can be a pain to work with. It's like a PivotTable without the Pivot....

When working with prices, it can often be beneficial to round to the nearest .99 cents. There are a few formulas we can use depending on...

Flow rate can be tricky to calculate, but if you have all of the required pieces we can create some easy Excel formulas to do the work...

A weighted average is an average where each value has a different level of importance, represented by a weight, which affects the overall...