Is there any simple formula for Numbers to Words Conversion in LibreOffice Calc?

[TseRigs]

I just want to show the amount numbers in words in the invoice. e.g. 75 = Seventy-Five Only.
Is there any simple formula for it?

[mikekaganski]

Just use NatNum12 number format code, that does just that - spells out numbers.

[mikekaganski]

Combined with @anon73440385’s answer to How can I add zero before single digit number only?, this can allow to have the “Only” to be appended to the whole numbers.

[TseRigs]

Here I got my answer. Click on the following link and try Numbertext Extension.

Thank you so much for this Super
extension creator!

https://extensions.libreoffice.org/en/extensions/show/numbertext-1

[mikekaganski]

Thank you so much for this Super extension creator!

… who was the author of the NatNum12, which was integrated into LibreOffice using the same library as the extension, allowing to use the functionality natively, without any extensions.