In Excel, custom input or error messages explain the rules for each field to prevent data-entry errors. Here's how to set them up in a spreadsheet.

About This Excel tool streamlines manual data entry with a user-friendly form and a VBA-powered Submit button that logs inputs into a structured table, reducing errors and boosting efficiency—ideal ...

Drop-down lists in Excel let you create a list of valid choices that you can select for a given field. We'll show you how to use tables, named ranges, formulas, data validation, and table styles.