How do you convert XRP INTO BTC on KuCoin?
I believe that you are asking how to make use of kucoin exchange, kucoin is one of the exchanges with a very good interface, and if you can't use them to trade then you have never made use of an exchange before in making trades, so what you need is to meet someone familiar with Crypto to show you how to place orders in exchanges, if you don't have anyone then you can make use of YouTube, I think watching YouTube videos will make you learn how to do it faster than written text.