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- In a new tab, copy - paste your original column with duplicates into column A
- Copy - paste your new cleaned up column into column B
- In column C, enter the following countif equation: "=COUNTIF(B1:B800, A1)"
- In any row that has the value "2" in column C, the column A value is a duplicate
How to (very) quickly fill in a column with a value or a formula:
If you want to quickly pull down a single value, you can double click (don’t drag) on the bottom right corner and the value will fill in bellow for all rows where there is information next to it.
The RED X shows you were to double click.
AND the same thing can be done with Functions! But don't forget to copy and paste value once you've created a column of functions.
