How to remove duplicates in certain columns?

[shumiaofang]

Hi, this is my first time to post here. I found excel can remove duplicated data in this article. It gave an example but I am still confused. I am not sure how to remove several columns instead of just one?

 

[ashakantasharma]

You can select the multiple columns by pressing CTRL and select all the column as necessary and delete all of them in one go.