Seeing unfamiliar guest users accessing your sharedExcel 365 spreadsheetscan certainly be disconcerting.
Theseunknown guestsdisplayed with generic names like fruit, colors or random words indicatesomeone is accessing your sheetswithout arecognized account.
By properly managing guest access, you’re free to collaborate securely.
What Triggers Unknown Guests When Sharing Excel Sheets?
Safely disable and recreate them:
This forces users to authenticate before accessing, providing accountability.
Enforcing sign-in keeps access accountable but still flexible for broader collaboration.
Combined with responsible sharing practices, it’s possible for you to confidently collaborate while keeping your spreadsheets secured.
