Tomasz74tomasz74 16.7k1010 gold badges4141 silver badges5252 bronze badges 2 In case your new column depends on your existing column so you can insert your new columns as mine under. and ended up with one particular very long file without any newlines, this is probably going an issue with ftplib, but https://holdenhhcxn.madmouseblog.com/13069031/a-secret-weapon-for-leads