The upper left$-$hand corner of the Excel spreadsheet in the file you download should look like the following sample spreadsheet. In cell C$2,$ select the correct Excel formula for computing the number of A grades assigned in the class. Enter this formula in cell C$2$ of your Excel spreadsheet. Do the same thing for cells $C3,C4,C5,$ and $C6$ with the grades $B,C,D,$ and $F.$