In the duplicate world, definition means everything. That’s because a duplicate is subjective to the context of its related data. Duplicates can occur within a single column, across multiple columns ...
Duplicate values aren't wrong, but you might not want to display them. Use this simple technique to hide duplicate values in Excel. Duplicate values aren’t wrong or bad, but they can be distracting.
Excel Conditional Formatting already lets you format cells based on the value of those cells or the value of the formulas in those cells (see our conditional formatting tutorial for more details). Now ...