Microsoft Excel's Data Validation tool lets you add a drop-down list to a cell based on existing data in a column. However, how this works depends on whether the source data is part of a formatted ...

You may want to create mandatory fields in your Excel spreadsheet -- fields that must be filled in before you can save the document. When a field is made mandatory, there is no risk of leaving out ...

Learn how to use calculated fields and items in Excel PivotTables to enhance your data analysis skills and uncover actionable insights.