The Excel SUM function calculates the total amount of any given set of values. The function can be used in a variety of ways, from quickly adding up a column of figures to creating complex calculations involving multiple values.
Function is very easy to use. All you need to do is select the range of cells that you want to sum and then use the SUM formula and it will automatically sum the values in the range and return the total.
You can also use the function to calculate more complex calculations such as the weighted average, the standard deviation, and the variance.
The SUM can be used to quickly calculate the total for a range of cells that contain text values. In this case, the formula will return a value of zero if the range contains only text values. This is particularly useful when you are trying to sum up a range of figures that contain some text values.