Judging by the number of IF-related comments on our blog its the most. This is the first Excel Function one should be familiar with. Most formula examples shown here are self-explanatory.
10 Excel Formulas SUM.
SUM is a great basic formula to know especially because it allows you to add up numbers in different ways. Use the AutoSum button to calculate basic formulas such as SUM AVERAGE COUNT etc. Typing a formula inside the cell. 10 Excel Formulas TRIM.