Prevent duplicates before they happen by combining a simple function with data validation.

Through Microsoft Translate Services, Excel can translate from one language to another (the TRANSLATE function) and detect another language already in a workbook (the DETECTLANGUAGE function).

How to Use Excel to Show Only Duplicate Values. Business issues such as incorrect transactions, data entry errors, technical glitches and poor system design may cause duplicate values in your data ...

Using a formula, you can automate the process of looking for duplicates in your Excel spreadsheets.

Duplicates in the same column are easy to find by sorting, filtering, and using conditional formatting. When none of those are an option, try this simple formula solution.