Select Data > Remove Duplicates, and then under Columns, check or uncheck the columns where you want to remove the duplicates. For example, in this worksheet, the January column …

Note: You cannot remove duplicate values from data that is outlined or that has subtotals. To remove duplicates, you must remove both the outline and the subtotals first. Select one or …

To remove duplicate values, select Data > Data Tools > Remove Duplicates. To highlight unique or duplicate values, from the Home tab, use the Conditional Formatting command in the Style …

When shaping data, a common task is to keep or remove duplicate rows. The results are based on which columns you select as the comparison to determine duplicate values is based on the …

You can use the following methods to compare data in two Microsoft Excel worksheet columns and find duplicate entries.

How to count the number of unique values in a range that contains duplicate values in Excel.

Importing calendar items might result in duplicate items. You can delete the duplicate calendar items.

Duplicate data often creeps in when multiple users add data to the database at the same time or if the database wasn't designed to check for duplicates. It is easier to use a query when you …

Excel designates multiple windows of the same workbook by appending a colon and a number to the file name on the title bar. Switch to the new window, and then click a sheet that you want …

Learn how Outlook helps to prevent duplicate contacts and how to remove any duplicates that occur.