Adding currency name after total amount in words

Hi Tut, Greetings
Thanks for replying to BIBEK for serial number in the items. it was really useful to have the Serial Number in the line item list. I am searching for a code that inserts name of the currency after or before the total amount in words that appears in invoice. Such as “US Dollar One hundred and twenty-two only”. or “One hundred and twenty-two Nepalese Rupees only”.
Something like this would really help.
Thank you.

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