How to find missing values with COUNTIF
Or, how to find values in a list that don’t appear in another list. Let’s take a look. In this worksheet, on the left, I have a list of 20 names. On the right, I have a much larger list of over 1000 names. How can I quickly figure out which names in the smaller list also appear in the bigger list? Well, there are several ways that we can approach this with formulas in Excel....