Chuyen CSV sang file do rong co dinh

Doi CSV thanh van ban co do rong cot co dinh hoac bang ke ASCII.

Cong cu dang duoc lam

Phan engine dung chung da xong; cong cu nay dang cho duoc noi vao. Trong luc cho, ban co the dung CSV sang JSON, JSON sang CSV hoac doi ky tu phan cach.