What it does
Data validation controls what users can enter in cells.
Syntax or pattern
Workflow steps vary by workbook✅
5 practical examples
1
Create a dropdown list
Allow only selected statuses.
Data → Data Validation → ListUse values like Open, Pending, Closed.
2
Restrict whole numbers
Allow numbers between 1 and 100.
Allow: Whole number | between 1 and 100Useful for score entry.
3
Restrict dates
Allow dates after today.
Allow: Date | greater than or equal to =TODAY()Good for due dates.
4
Use a dynamic list
Use a named range or spilled list for dropdown options.
=StatusListKeeps choices easier to maintain.
5
Show input message
Add guidance for users before they type.
Input Message tabReduces data entry mistakes.
Common mistakes to avoid
- Keep raw data separate from reports.
- Use clear table names and labels.
- Avoid over-formatting before the data structure is stable.
Related Excel examples
FAQ
Can this be combined with formulas?
Yes. Most Excel workflows work best when formulas, tables and formatting support each other.