How do I convert a cryptocurrency to a Cex Io wallet?

As a cryptocurrency enthusiast, I'm curious about the process of converting my holdings into a Cex Io wallet. Could you elaborate on the steps involved? Firstly, would I need to create an account on Cex Io? Secondly, how do I determine the compatibility of my chosen cryptocurrency with the Cex Io wallet? Moreover, are there any specific fees or transaction costs associated with this conversion? Lastly, could you provide any security tips to ensure a smooth and secure conversion process? Your insights would be greatly appreciated in navigating this aspect of digital asset management.