To pinpoint duplicate entries, apply Excel's conditional formatting feature: Open the Excel worksheet containing the data in question. Select the column or range you want to inspect for duplicates.

You can delete duplicate rows in Excel and Google Sheets using this simple trick. You need Remove Duplicates add-on for Google Sheets.

Learn how Google Sheets gives you tools to sort ranges, compare cells, and remove duplicates quickly.

Excel 2013 can locate duplicate rows as long as one column contains a unique identifier for each record, such as a product ID or account number. By referencing this identifier, you can find ...