A common use of data validation is to create a drop-down list. Use it to restrict the type of data that users enter into an Excel cell.

Microsoft Excel makes it possible for users to easily get around incorrect data entries. In most cases, the user takes advantage of the data validation feature.

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

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 ...

Combine an Excel custom format with data validation and remove the pressure for input perfection from personnel by letting Excel do the work.

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 ...