When you use the RAND function on a Microsoft Excel spreadsheet, by default the random number will be nine or ten digits long, extending well past the decimal point. The RAND function does not ...

Excel offers three key functions for random number generation: `RAND` (random decimals), `RANDBETWEEN` (random integers), and `RANDARRAY` (customizable arrays).

Here is a tutorial to lock or hide only the formula cells in an Excel workbook. You can also lock formulas in all worksheets in a workbook.