Learning to use loops in Excel VBA puts a lot of power into your hands. Of course, you earn more when you know how to implement such loops.
The 'for loop' in Excel VBA has many variations and the method described here is universal. We combine the 'for loop' with the 'cells' property to access relevant cells and perform accurate and quick calculations in other relevant cells. Now you can also imagine using the looping process for data analysis. For example, you could find out all the employees drawing a certain amount of salary and highlighting their names.
In fact, the looping methods make the computer a truly powerful tool for the many computations that we humans find interesting.