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# This program takes a list of foo data files
# for each file it:
#    reads the file    
#    sanitizes the data fields
#    converts the file to csv (name is based on foo file name)

# This program takes a list of foo data files
my @foo_files = @ARGV;
...

    return;
}

sub convert_foo_name_to_csv_name {
...
    return $name;
}