The Data Validation window that pops up allows you to set your criteria in many ways. For our example, choose Whole Number for Allow:, greater than or equal to for Data:, and -700 for Minimum:.

Learn how to create a drop-down list using Data Validation in Excel. Data Validation limits the type of data that can be entered into a cell.

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

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 ...