Randomly selected samples from a larger population prevent bias in statistical procedures while avoiding the hassle of dealing with the entire dataset. If you have a list of entries to pick from in ...

Excel spreadsheet databases work because users can filter the data inside these workbooks. Filters are conditions you specify in databases and spreadsheets to extract only the precise, requested ...

As you create Excel spreadsheets for your small business, time and date functions frequently add both convenience and programming capability to your workbooks. There's good news with date functions.

Block bad data, duplicates, and incorrect dates with these custom rules.