How do I unwrap WBTC to BTC?

Could you please elaborate on the process of converting Wrapped Bitcoin (WBTC) back to Bitcoin (BTC)? I'm curious about the steps involved and any potential considerations or requirements that might need to be met. Is it a straightforward process, or does it involve more complex operations? Additionally, are there any fees associated with this conversion, and how long does it typically take to complete? I'd appreciate a detailed explanation of the entire unwrapping process.