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 ...

Have you ever stared at a massive Excel spreadsheet, overwhelmed by rows of numbers, wishing there was a faster way to make sense of it all? Here’s the good news: Excel 365’s conditional formatting ...

If you see the error “This value doesn’t match the data validation restrictions defined for this cell” when entering a value in an Excel cell, the solutions ...