Microsoft Excel's form controls can turn the Boolean options of a true-false choice into a clickable data-entry option. If you create spreadsheets to record business information about sales, personnel ...

A check mark box in an Excel spreadsheet is handy for ticking off items, but it can go much further. Excel check boxes can trigger calculations and provide visual indicators. For example, in addition ...

This simple function acts as a critical safety net for your workbooks.

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