Data duplication is a common problem in Excel spreadsheets. It can occur when data is entered manually or imported from other sources. Duplicate data can lead to errors in calculations and reporting. It can also make it difficult to manage and analyze data effectively.
There are several ways to check for duplicate data in Excel. One method is to use the conditional formatting feature. To do this, select the range of cells that you want to check for duplicates. Then, click on the “Conditional Formatting” button on the Home tab. In the “Conditional Formatting” dialog box, select the “Highlight Cells Rules” option and then choose the “Duplicate Values” rule. This will highlight all of the duplicate values in the selected range.