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Hi @Laura McNamara
I was able to test this successfully on Excel for Mac version 16.109 (26051019) running on macOS Tahoe 26.3.1 (a). To better understand what’s different in your setup, could you please confirm the following:
-Which macOS version are you currently using?
-Can you add the add-in successfully in Excel on the web?
Sign in Microsoft 365 Portal > Apps > Then open Excel Online > check if the MyEducator add-in appears there.
-What Microsoft 365 license do you have? Based on your channel tag, it seems to be an education environment, you may have an A1, A3, or A5 license.
You can verify it here https://portal.office.com/account#subscriptions.
-When you try to add the add-in, what exactly happens? Is the Get Add-ins button missing entirely? Does the Store open but MyEducator cannot be found? Or do you receive a specific error message? If yes, please share the exact wording or a screenshot.
Please know that while our initial response might not resolve the issue right away, your input is incredibly valuable. With a bit more detail, we’ll work together to find the best solution for you.
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