How to swap USDC E to USDC?

Could you please explain to me how I can swap USDC E to USDC? I'm a bit unfamiliar with the process and would appreciate a step-by-step guide. I've heard that it involves a cryptocurrency exchange, but I'm not sure which one to use or how to navigate the interface. Also, are there any fees associated with this swap? And how long does it typically take to complete? It would be great if you could provide some clarity on these matters.