
Originally Posted by
JBeaucaire
1) Put titles in A1:B1 for "Supervisor", "Codes"
2) Drop the data in A2:B2 downward
3) Put this formula in C3 and copy the cell downward:
=IF(A2=A3, B2&";"&C3,B2)
4) Copy column C, then do a PASTE SPECIAL > VALUES to remove the formulas.
5) Put this formula in D3 and copy the cell downward:
=IF(COUNTIF(A1:A2,A2)=1, "keep", "delete")
6) Highlight columnD and turn on the Data > Filter
7) Filter column D to show "delete" only
8) Highlight all visible rows and delete them
9) Delete columns C:D
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