Hi,
I'm Ajibola, an Independent Consultant here and a Microsoft user like you. I don't work for Microsoft and cannot access any of your data on their system.
The Track Changes button is no longer available in the ribbon in the newer versions of Excel for Mac. In order to use this feature, you will need to add Track Changes back to the ribbon first¹. If that doesn't work, you can try turning on the disabled track changes option by following these steps³:
- Open a worksheet
- Go to Tools > Track Changes > Highlight Changes
- Place a checkmark across “Track changes while editing” option
- Click on the down arrow present next to When, Who, and Where
If none of these options work, you can try converting your tables to ranges and remove XML maps.
Reference: (1) Track changes in a Shared Workbook - Microsoft Support. https://support.microsoft.com/en-us/office/track-changes-in-a-shared-workbook-22aea671-cac7-4fa3-845d-eeb23725bd15.
(2) How To Fix Excel Track Changes Grayed Out Issue? -<removed by Moderator>
Kind regards Ajibola