Tag Archives: Functions

IFS function: Goodbye nested IFs

With Excel 2016 and Office 365 Pro plus, a less confusing and powerful function was introduced – IFS function. It eliminates the confusion generated by multiple nested IFs for complex calculations. In any case, if you are using multiple nested IF statements, check whether VLOOKUP can solve the issue or use Pivot Table grouping.

Nested IFs look like this:


The same formula using IFS function is much simpler to type and understand :


IFS function has just ONE set of brackets, irrespective of the number of conditions used. It also offers the last argument for default return value – in case all other conditions did not produce any output.  Try using it.

The function will return an error if used in versions before Excel 2016. Be careful.

Excel Function Warning

When you type  something in a cell after an = sign in Excel, a list of functions is shown.  Functions have an icon next to them. For some functions, the icon shows a Yellow triangle with an exclamation mark. That is the Excel Function Warning I am talking about.

No warning No Excel Function Warning                         Warning Excel Function Warning for STDEV function

What exactly is the Excel Function Warning?

It basically means: “Do not use this function. We have a new and more accurate function available now”.  If you use only newer versions of Excel, you should use the newer functions.

Standard Deviation

Here is an example. The older STDEV function now has two separate functions STDEV.S and STDEV.P – S means sample and P means population. The mathematical formula used behind the scenes by these functions is different. As mathematics advances further, the logic used also undergoes improvement. The newer functions utilize the latest algorithms to increase accuracy of your results.

Best practice

  • Notice if any of the your formulas have one or more Excel Function Warning icon.
  • Go to the help file of that function.
  • The newer, better or more appropriate function will be listed there.
  • Learn the new function(s). Understand what has changed and why.
  • Change these across your files to ensure more accurate results.
  • Use the new function when you create new workbooks.