Convert xxd hexdump to CSV file for spreadsheet import

txt2csv.py

# Assumes in_txt was generated by `xxd -g1 in.bin > in.txt`

import csv

with open(in_txt) as fin, open(out_csv, 'w') as fout:
    o=csv.writer(fout, quotechar='"', quoting=csv.QUOTE_ALL)
    for line in fin:
        row = line.rstrip('\n').split(sep=' ', maxsplit=17)
        # remove one leading space from last item
        row[-1] = row[-1][1:]
        o.writerow(row)