I have been uploading excel file to onedrive for 1+ years - 3 times a day.
I go to onedrive click on upload files and click on "replace" and file is uploaded - all works great. Starting today, when I click on "replace"
I get message "file cannot be replaced because it is open. Close and try again"
I am doing nothing different from what has been working for 1 + years.

Would appreciate any help or if I am in wrong foeum - where can I get help