Read permission allows users to view the contents of a file without the ability to modify it. Consequently, the employee can open the file (hence they have 'read' access), but they are unable to edit (which would require 'write' access). Write permission enables modification of the file. Execute permission is irrelevant to file editing as it is associated with running the file as a program. Full control would provide the ability to both read and write, making changes as needed.