Can I swap BTCB to BTC?

Hello, I'm just getting started in the cryptocurrency world and I'm a bit confused about something. Could you possibly clarify for me? I've heard about BTCB and BTC, and I'm wondering if there's a way to swap one for the other. I'm not sure if they're interchangeable or if there's a specific process involved. Could you explain the difference between them and if it's possible to make the swap? I'd really appreciate it if you could break it down for me in simple terms. Thank you so much for your help!