Enter the waluty.dat file, which is located in the “Data” directory of the program in the directory
with Faktura VAT 2020 program (by default, C:RAFSOFTFaktura VAT 2020Data or another
directory selected during installation).

Select the currency icon (it may look different than the text file) and right-click
on it (you can hold SHIFT). Select the option
“Open with…” , “Open with…” and select Notepad.
File structure:
PLN; PLN; Gr; 1
EUR;€; c;
USD;$; c;
GBP; Ł; p;
CZK; Kć; h;
DKK; Kr;;
Now, to add another currency, just add its symbol in the next row.
1 is the default currency used by the program.