Can't open a shared Excel file

Question

From what I can find my friend shared an Excel workbook from his work email, as it was the account he created the file with, through sharepoint back in November 2021 with my personal email address. Until yesterday I was able to open the file without any problems.
Even though I do the same steps (sign-in to outlook.com with my personal email, open the email, then open the file), it acts as if I am opening the file through my work email. A message comes up and tells me that my work email isn't in the directory. I then click to sign in with a different account, which is my personal email, but I am still unable to open the file.

Answer 1

Hi @Thomas Hawk ,

According to your description, your friend invited you as a external user. He have to reinvite you again.

1.Determine which account has access as an external user
2.Remove the incorrect external user account
3.Clear the browser cache
4.Reinvite the external user

For more details: Error when an external user accepts a SharePoint Online invitation by using another account

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