Array formulas in Excel

What is an array ??

The term array refers to a collection of data residing in a column or row of Excel or a combination of them. In Excel, these elements may reside in a single row (what is called a one-dimensional horizontal array), a column (one-dimensional vertical array ) or multiple rows and columns (two-dimensional array). In Excel you can not create array formulas or arrays that are three-dimensional.

And an array formula ... ??

"I have enough with the formulas, and now you talk about array formulas.. Help!!"

...

If you feel like this right now wait, they are simpler than the name suggests, and learning them it is for Excel power users.

How to calculate AGE in Excel

Well today I want to look at one of those problems we face from time to time, and that is none other than how to calculate the exact age using Excel, and considering that having to include leap years can present a bigger challenge than we initially anticipated. Well let's see how it's done.

In this tutorial we will look at three methods to calculate age in cell C2, being cell A2 the date of birth and B2 today's date, calculated through the Excel function TODAY.

Conditional Formatting - Formula to search values

Today we are looking at another example of using formulas in conditional formatting.

It is recommended to first read and understand the entrance Conditional Formatting - formulas for selecting cells.

Imagine you have the list of European football teams, located in the range B5:B31.

What we want to achieve is to enter some text in a cell, for example D2, and if that text is in any value from the list then highlight the cell(s) in the way you want.

To do that the formula to be used is:

Conditional Formatting - Formula to highlight duplicates, errors and omissions

Today we are looking at another example of using formulas in conditional formatting.

It is recommended to first read and understand the entrance Conditional Formatting - formulas for selecting cells

1. Highlight duplicates in a list

For this example we will use a standard list of data like this. This list is in the range B7:B23.

So the formula to highlight duplicates is:

=COUNTIF($B$8:$B8,$B8)>1

How to build a Waterfall chart in Excel

A Waterfall chart???? Yes, in this post we are going to see what I mean by that.

The Waterfall chart in Excel is a type of chart that includes what appears to be floating columns, which help to better visualize the contribution of all parties to the total.