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Highlight duplicates, multiple columns

  1. #1
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    Highlight duplicates, multiple columns

    Hi all

    I have a sheet with 12 columns. I would like to highlight rows where the data in 4 of these columns is identical/duplicates. Below is an example:

    Day Start Weeks Location
    mo 10:00 35 1485 - 239
    tu 09:00 35 1482 - 50
    mo 10:00 35 1485 - 239
    fr 11:00 38 1272 - 560

    Because row 2 and 4 is totally identical I want a way to highlight these.

    In advance, thank you for your help.

    Kind regards Chris

  2. #2
    Forum Moderator Richard Buttrey's Avatar
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    Stockton Heath, Cheshire, UK
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    Office 365, Excel for Windows 2010 & Excel for Mac

    Re: Highlight duplicates, multiple columns


    Use a helper column E and concatenate A1:D1. i.e. =A1&B1&C1&D1
    Copyh this down

    Then alongside the helper column enter the formula in F1
    Formula: copy to clipboard
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    copy this down and filter for the word 'duplicate'
    Richard Buttrey

    If any of the responses have helped then please consider rating them by clicking the small star icon below the post.

  3. #3
    Forum Expert shukla.ankur281190's Avatar
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    Lucknow, India
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    Re: Highlight duplicates, multiple columns

    Select the A2:D5 column ->>> Press Alt->> O D->>> you will get a window Conditional formatting Rules Manager->> Click on new rule->>>you will get another window name New formatting rule->>>select use a formula to determine which cells to format---->put in the =SUMPRODUCT(--($A2&$B2&$C2&$D2=$A$2:$A$5&$B$2:$B$5&$C$2:$C$5&$D$2:$D$5))>1 in formula section then select the format->>> format the cells what you like to do. then Ok->> Apply->> ok.

    Same thing you will have to do for N column also but only formula will be change that would be =COUNTIF($B$1:$B$8,$N1) and all done.

    Check the attached file.

    Hope this will help you.
    Attached Files Attached Files
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