As such, you must control the data other people enter. That’s when you need Data Validation. Microsoft Excel makes this job simple. How to use Data Validation for Excel Cells ...

When you update this spreadsheet with new or different data, you won’t have to re-create the validation rule, but you will need to click Circle Invalid Data again. This tool would be useful to bring ...

How to base a data validation dropdown on an array in Excel Now we’re ready to create the data validation dropdown that will display the unique list in column H.

This article will teach you how to create drop-down lists in Microsoft Excel using a feature called Data Validation. When applied, the Data Validation function serves to restrict data that can be ...

Learn how to use a data validation control to allow users to select when to run multiple VBA procedures in Microsoft Excel.

Incorporate dependent dropdowns and data validation to ensure consistent and accurate data entry, using formulas like XLOOKUP and rules for numeric inputs.

Click the "+" sign at the bottom of Excel 2013 to create a new sheet to use as a data source. Enter the values you need for the first drop-down list in column A on the new sheet.

How to Make a Drop-Down List to Choose a Date in Excel. Microsoft Excel lets you create simple forms that your users can enter data.