Excel **FUNCTIONS** = Predefined formulas used for specific values in a specific order. They operate usually on data entered in range of cells and increase the Excel users productivity. Total number of the functions available in Excel is close to 700.

Some of the most important of them (most frequently used) are: SUM, IF, MIN, MAX, AND, OR, AVERAGE, COUNT, DAYS, VLOOKUP, DATE, ... etc. Examples of functions working with text: UPPER, LOWER, PROPER,... etc.

Excel **FORMULAS** = Expressions operating on values in a range of cells and operators. Can utilize several Excel functions and work with both numeric and textual data. ARRAY formulas are a special type of formulas, and can be very complex.

Here is the list and description of some of the most useful shortcuts used in conjunction with Functions and Formulas. I hope you'll find them helpful.