Go to Data on the Ribbon, and in the Data Tools group, choose Data Validation. The Data Validation window that pops up allows you to set your criteria in many ways. For our example, choose Whole ...

There’s no built-in duplicate rule for Excel’s Data Validation feature, but you can combine the feature with the COUNTIF() function to get the job done. To do so competently, ...

Excel’s data validation feature is underused because many users don’t realize how versatile it is, especially where dates are concerned. Dates seem to complicate things, but only in your head!

If you are getting the Data source reference is not valid while trying to create a pivot table in Microsoft Excel, see this post for the fix.

Data Validation is a feature in Excel that allows users to pick from a list of rules to limit the type of data that can be entered into a cell. Follow the steps below to create a drop-down list ...

Did you know that you can leave notes on specific Excel cells for people to read? It’s a great way to safeguard against data entry mistakes by putting in reminders or instructions. Here’s how to set ...

Automated Data Entry in Excel. ... To create a custom list, click the cell in which you want the list to appear. Click "Data Validation" on the Data tab and click "Data Validation." ...

I've got an Excel 97 worksheet in which I need to validate some cells. No problem, I'll just use Data->Validate, right? Wrong. The built in validation works well enough as long as the user doesn't ...

Data validation in Excel allows you to create drop-down menus right inside individual cells. You can also restrict the types of values entered into different cells.

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.