How can there be guests on my excel sheet that i did not give access to??

Be aware, specific people will not work unless all those on the list have a Microsoft account. MS recommends having others create an account with their current email address.

I found this out when researching why I got the spinning wheel on setting shares.

I think others in this thread are correct, MS is assigning random names to non MS account users who have been sent the link to these sheets.

I've got the same poblem. Very disquieting. Do we trust onedrive?

Come one, Microsoft! Answer, please.

No confidence.

I have had Honeydew and Canarywood viewing my Excel doc when I know for a fact I only shared it with my husband who signed in as a guest with his Gmail.

So after finding this thread I simply deleted the document and proceeded to create a Google Sheets doc instead for the security.

I have NO shares and can send images - yet still says someone still Guava (Guest) Has this workbook open

Same here. Mine is "Turnip (Guest)."

I have an Excel worksheet that I have only shared with my work email address. I am the only person with access to the file and do it so I can add information when I'm at work.

I get an email when I open the file at work and DID NOT get an email from "Turnip (Guest)" showing up as accessing the file. Scared the hell out of me. Went to the share options and only saw my access and my work email address access. Nothing logged for "Turnip." I took away access to the work address and renamed the file.

I am very worried about this. Microsoft we need answers.