Well at what part are we in?

opening a SPECIFIC file doesnt work, however all other files in the same storage device do open?

copying the file, moving it work yes or no?
If no we should assume a new scenerio that the file is possibly corrupted.
Please do not add or delete more files into this same storage device, using recuvve the program suggested by F5ing do a deep scan on this storage device.

I know your pain, i have lost important files not once but 3 times.
Today i have 3 HDD, 1 solely dedicated for backups of everything in my computer

Storage device = HDD