Excel banner goes grey in MacBook when screen is maximised

JonGemstone01 20 Reputation points
2025-11-26T10:26:02.82+00:00

When I click green circle in top left/h corner to maximise screen in macbook, the excel green header turns grey and icons are dificult to see. if i then click yellow circle to part minimise screen, header goes back to green. I have done a short screen capture video to show this.

Why is this happening, can it be fixed please? Tks, [Moderator note: personal info removed]

Microsoft 365 and Office | Excel | For business | MacOS
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  1. Michelle-N 9,260 Reputation points Microsoft External Staff Moderator
    2025-11-27T12:40:22.27+00:00

    Hi @JonGemstone01

    Thanks for updating. Please uninstall the Excel app: Go to System settings > Storage > Applications > Choose Excel > DeleteUser's imageThen download directly from Microsoft website: https://dori-uw-1.kuma-moon.com/en-us/officeupdates/update-history-office-for-mac

    User's image Please let me know if there are any updates.

    1 person found this answer helpful.

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  1. Michelle-N 9,260 Reputation points Microsoft External Staff Moderator
    2025-11-26T12:26:42.9766667+00:00

    Please note that our forum is a public platform, and we will modify your question to hide your personal information in the description. Kindly ensure that you hide any personal or organizational information the next time you post an error or other details to protect personal data.

    Hi @JonGemstone01

    Thank you for posting your question in Microsoft Q&A.

    Based on the information you shared, I understand that the Excel header turns grey and the icons become difficult to distinguish when you maximize the screen on your MacBook, but it returns to the normal green color when you revert to the standard window size.

    However, due to limitations in my test environment, I hope you can provide some additional information via Private Message to help me investigate this further:

    • Could you please let me know the specific version of macOS and Microsoft Office you are currently running?
    • Since I am unable to see the video you mentioned, could you please provide full-screen screenshots showing the interface both before (normal) and after (maximized) the issue occurs?

    Looking forward to your reply.


    Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

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  2. JonGemstone01 20 Reputation points
    2025-11-26T13:35:40.0633333+00:00

    Hello, thank you for trying to answer this. The icons for attachment will not allow the video clip to attach, so below i have attached 2 frames from video, one showing Excel in part minimised state with green header and one with Excel in maximum screen size and the header now greyed out. Also included are versions for Excel & Mac OS.

    User's image

    User's image

    User's image

    User's image

    [Moderator note: personal info removed]


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