Please show the step by step instructions with the uploaded excel file if possible.

There are eight students in your math class. They all took a quiz. Enter the eight names in one column and eight (different) scores in an adjoining column. At the bottom of the column calculate the class average. Now add a new column that calculates the points above or below the class average for each student. Use the Fill operation. Change one of the scores. Do the class average and all of the points above or below change accordingly