Formulas are composed of values and operators. It's possible to create formulas that link cells in various worksheets together. You may add all sort of formulas, and make graphs with your data. If you're finding yourself writing plenty of formulas to summarize data in Excel (using functions like SUMIF and COUNTIF) then PivotTables can help save you plenty of time and work and provide you insights into your data which are otherwise too difficult to discover. For example, if a formula involves a reference to cell C3 and you change the value located in C3, the consequence of the formula will change accordingly. When you produce a formula that refers to a different cell that likewise has a formula, your formula will use the effect of the formula in that other cell. Learning how to utilize Excel formulas is among the main things you'll learn how to do with Excel.