Use: ./msdos2utf8.py OLD_DOS_FILE NEW_ENCODED_FILE

msdos2utf8.py

#!/usr/bin/python3
#
#  Usage: ./msdos2utf8.py OLD_DOS_FILE NEW_ENCODED_FILE 
#
# Creates a new file UTF-8 encoded, taking the input file as a file with old ASCII encoded used in MS-DOS systems.
#
# Try to replace 'cp437' with 'iso8859' if the new file isn't encoded properly

import sys

with open(sys.argv[1], encoding='cp437') as infile:
    with open(sys.argv[2], 'w', encoding='utf8') as outfile:
        outfile.write(infile.read())