In my country there are some (fiscal printers) and these printers will print the receipt (dimensions 57mmx...)
The printer waits to get invoice from a folder p.s (c:\temp\bill01.txt).

How to print on Bill01.txt?

in this format

Item name; quantity; selling price; TaxGroup; amoount;

p.s

coca cola; 10; 0.50; 2; 5;

Thank you,