1. Select an empty cell beneath your column
Open your sheet in Excel, then scroll to the bottom of the column that you want to total and click into the first empty cell beneath the values.
2. Use the SUM formula
Type a formula like =SUM(A2:A31)
to total the range from the first to last cell in the column you want to add, and then hit Return (Mac) or Enter (Windows).
3. Use AutoSum as a shortcut
Alternately, you can skip writing a formula. Click an empty cell, go to the Home
tab, and click the AutoSum (∑)
button to automatically insert the correct formula for the column above.