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 remove duplicates in Excel in a few steps. Duplicates can create problems when you're dealing with data.

This option only appears if Excel detects data adjacent to the selected column. Uncheck all columns except the one containing the consolidated data and click "OK" to remove duplicates.