如何删除一列中的所有重复项，并保持值最高的行（来自另一列）

Question

I'm trying to remove duplicate CustomerIDs and keep the one with the highest CompositeRank.

CUSTOMERID     STORE      COMPOSITERANK
51872          FOS        5
51872          MOS        3
51872          BOS        2
10098          BOS        5
10098          MOS        3
10098          FOS        2
99102          MOS        5
99102          FOS        3
99102          BOS        2

After removing the proper duplicates, it should look like this:

CUSTOMERID     STORE      COMPOSITERANK
51872          FOS        5
10098          BOS        5
99102          MOS        5

Thanks for your time.

Answer 1

Multi step approach:

1. Sort by customerID then compositerank Desc
2. Add a formula similar to the following =IF(A2=A1,0,1) 3)
3. add a filter for 1 achieve results similar to below screenshot.

If you need to retain ordering first add a column with 1 and then 1 + row above and fill the series down. Then after step 3, re-order based on column added.

you can then copy /paste results to different worksheet if needed, or just leave the non-highest ones hidden.