A Microsoft file hosting and synchronization service.
Hi,
You’re seeing spam files because OneDrive shows anything shared with you even from unknown people. These files aren’t stored in your OneDrive, so you cannot delete them.
What I recommend is:
Go to OneDrive Web → Shared tab → Remove from Shared list to hide them.
Use Report abuse on each file and Block the sender to stop future shares.
Never open or download suspicious files.
Strengthen your account security (update password, enable MFA).
I hope this helps!