There is a folder I wish to convert back to the
                 Unix mail box format.
Is there a DOS program that does this ?
Where can one find it?
For example a file arrive as MAIL.ZIP and unZIPs to:
MAIL     ZIP         3,608 bytes
0000000  MSG         7,289
AREAS                   17
        3 file(s)         10,914 bytes
AREAS contains:
    0000000 Email   bn
Is there a DOS program that will take a Yarn folder and
convert it to this format.
I believe it is called
    Unix mail box format.
Please correct my terminology if needed.
After I have it in the original Unix mail box format, I
intend to IMPORT in back into Yarn with a different
filter versus the first filtering.
Thanks in advance for any help.
Cheers!