How to fix "Illegal quoting in line x" when parsing CSV with Ruby

To fix the illegal quoting issue, use a quote\_char that is not in your data: ```ruby CSV.open('data.csv', quote_char: "\x00", col_sep: "\t").each do |s| end ``` Use double quotes around \\x00, otherwise you'll get: ```ruby :quote_char has to be a single character String ``` You can also try the "liberal_quoting" option available in Ruby 2.4, and specifying the correct quote_char...