25 most useful Excel function everyone needs to know to become smarter in Excel.

1. Excel SUM function This is a very basic Mathematical function required for everyone using Excel. Excel SUM function sums a particular specified range or sets of number.

2. Excel COUNT function Excel COUNT function also a basic function that counts a specified range of values. It only counts numerical values.

3. Excel AVERAGE function Excel AVERAGE function is used to calculate average value of numerical values within a specified range. See how to do it.

4. Excel SUMIF function Excel SUMIF function makes sum of numerical values within a specified range if they meet a desired criteria. And this function is very much useful for all Excel users.

5. Excel COUNTIF function COUNTIF also counts the numerical values within a specified range if they meet a desired criteria. And this function is very much useful for all Excel users.

6. Excel SUMIFS function Excel SUMIFS function allows sum of numerical values within a specified range if they meet not only one but multiple desired criteria.

7. Excel COUNTIFS function Excel COUNTIFS function counts of numerical values within a specified range if they meet not only one but multiple desired criteria.

8. Excel IF function This one is the most useful and primary logical function. Excel IF function is for logical test. It check whether a condition met then returns a value if TRUE or another value if FALSE.

9. Excel VLOOKUP function VLOOKUP is one of the most discussed and most useful function for your daily spreadsheet works. Excel VLOOKUP function to look up and retrieve data from a specific column in array.

10. Excel SUMPRODUCT function SUMPRODUCT function multiplies ranges or arrays together then returns the sum of products.