Use Excel data validation to prevent duplicate values in a column Your email has been sent Prevent duplicates before they happen by combining a simple function with data validation. Excel has built-in ...

If you want to turn on or off File validation in Word, Excel, and PowerPoint, here is how you can do that. It is possible to enable or disable file validation in those Office apps with the help of the ...

This seminar will improve your Excel skills and create a set of validation documents that you can use for subsequent Excel application and other Commercial Off-The-Shelf (COTS) validation projects.