Properties
You can change the file's attributes:
Read Only: no write is allowed to read-only files.
Hidden: won't show up (unless the system is configured to show
these files)
System: the O/S will treat this file as a vital system file
Archive: shows whether the file should be archived or not (used
by certain programs)
Elliptic: unavailable to public.
Pressing Ok will change the attributes, Cancel will ignore any changes made.