| Microsoft Excel is an extremely versatile piece of | | | | false. But, instead of displaying a TRUE or FALSE |
| software. Even though it's been around for well over | | | | value as a result, instead it lets you control exactly |
| 20 years now, it is still under-utilized by most users. | | | | how the resulting value will look. |
| Excel has come into such widespread use that people | | | | For example, the formula: |
| take it for granted, and even many long-time users | | | | =IF((A1+B1)>4,"Larger than 4","No Dice")would |
| do not know how to leverage even a small fraction | | | | display the text "Larger than 4" if the sum of the |
| of what it can actually do. | | | | values in cells A1 and B1 is larger than 4, but it would |
| Some of the great "hidden gems" of Excel include its | | | | return the text "No Dice" if not. Remember, you can |
| many functions and formulas. Speaking of functions: | | | | substitute the text in this example for anything you |
| Excel sported no less than 331 functions last time I | | | | want. |
| counted. Granted, you likely will never need to use | | | | 2. Evaluate more than one cell at once with OR and |
| many of these unless you are an engineer or are | | | | AND functions: |
| involved in certain types of statistics or high-level | | | | The AND and OR functions work similarly to the IF |
| math (ever heard of a Bessel function? Excel does | | | | function. However, they return the values TRUE or |
| that, too - but I will probably never have the need to | | | | FALSE depending up the result, rather than text that |
| use it!). | | | | you specify. Also, unlike the IF function, AND and OR |
| But what is a function? Basically, functions are | | | | necessarily compare combinations of two or more |
| complex formulas whereby all of that complexity | | | | values at once. |
| happens "behind the scenes." As the user, all you | | | | The difference between the AND and OR functions |
| need to memorize is the function name and how to | | | | themselves is that (as their names imply): the AND |
| set it up properly. Excel does the rest. Using functions | | | | function only returns TRUE if both/all conditions are |
| always requires typing in the function name and a set | | | | met, while OR returns TRUE if any one condition is |
| of parentheses. The parentheses usually hold one or | | | | met. Examples: |
| more arguments, such as cell addresses (e.g., A1 or | | | | =AND(A1>1, A1<10) (note: this returns TRUE if |
| C3, etc.). | | | | the number in A1 is 2, 3, 4, 5, 6, 7, 8 or 9; otherwise, |
| So, what's a formula, then? Well, formulas are usually | | | | it returns FALSE). |
| combinations of operators (like +, - and = signs), | | | | =OR(A1="Bob","B1="Bob") (note: this returns TRUE if |
| numbers, cell addresses, and sometimes functions | | | | the text in A1 or the text in B1 (or both) is "Bob.") |
| themselves. Formulas are needed when there is no | | | | 3. Add today's date to a spreadsheet: |
| specific existing function for what you need, or if | | | | Okay, now for a quick-and-easy one. How do you |
| you need to combine multiple functions together. | | | | easily add today's date to a cell without having to |
| Technical note: to use both formulas and functions | | | | type it in again every day? Simple! Use: TODAY(). |
| properly, always start with a =. | | | | Example: |
| Below, I introduce you to a list of useful Excel | | | | =TODAY() (note: this returns today's date in a date |
| formulas that you should know. Each is very useful, | | | | format, such as DD/MM/YYYY). |
| and most Excel users will find that these come in | | | | The next time you find yourself needing to evaluate |
| very handy: | | | | one or more values, try the IF, OR and AND |
| 1. Use a formula with an IF function to evaluate or | | | | functions. And, to add today's date to a spreadsheet, |
| compare text or numbers within cells: | | | | try the TODAY function. Once you get the hang of |
| As an Excel user, you will often want an easy way | | | | these formulas and functions, check out various |
| to compare or evaluate a number in a cell or a range | | | | online resources or Excel's own Help feature for |
| of cells. One way to do this is with an IF function. An | | | | more information on the full range of formulas and |
| IF function tells you whether something is true or | | | | functions available to you. |