How To Check For Duplicates In Excel. Go to the worksheet that has the duplicate entries and select Data Filter Standard Filter it seems to automatically select the data in the sheet that it will filter you may want to do this manually beforehand. You can do that by following these steps.
In the following image would find the selected range to be A1C10. It is a straightforward tool for highlighting duplicate values or duplicate rows in a sheet. Select the data youd like to remove duplicates from then click Data Remove Duplicates.
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Once the Duplicate Values menu is open you can choose between highlighting the duplicates or the unique values. Select Home Conditional Formatting Highlight Cells Rules Duplicate Values from the drop-down menu. Select the data youd like to remove duplicates from then click Data Remove Duplicates. For this example Ive created the following table with a few hundred rows.