= File write from edit screen.

        {CREate | REPlace | APPend} filename [/M{P|U|M}]
                     [[-x|-nx] [.lab1 .lab2]

            filename:wildcard allowed.
                     wildcard for path should be unique path,
                     wildcard for member is used for rename.
            CRE     :Create new-file(fail if already exist)
            REP     :Replace existing file without confirmation
                     (create if not exist,)
            APP     :Add lines at end of file
                     or create if file is not exist.
            -x      :only excluded line is selected
            -nx     :only not excluded line is selected
            all     :used with -x or -nx.
            .lab1/2 :used with -x or -nx specifying file range.

            /M      :request to change eol char.
                     P:0d0a(PC file)
                     U:0a  (Unix file)
                     M:0d  (Mac file)

             Without -x or -nx option,
             specify copy range by line command c(Copy) or m(Move).
             Use "Line Marking"(Alt+h) to specify line range to be
             written when line-no is not displayed.