We have some spreadsheets on the network drive. Everytime myself or a
coworker at different times try to open the spreadsheet, we receive the
message "Filename is locked for editing". No one on the network has the file
open. Everyone has closed and turned their machines off, but I am still
unable to access the spreadsheet.

Can you let me know what I need to do to access the spreadsheet. We made
sure read-only is not checked in properties.