How do I transfer Bitcoin into cash?

Could you elaborate on the process of converting Bitcoin into cash? As a crypto enthusiast, I'm interested in understanding the steps involved in this transaction. What are the key platforms or services that facilitate this exchange? Are there any fees associated with the conversion? Additionally, how long does the process typically take, and are there any security measures I should be aware of? I'd appreciate a clear and concise description of the entire process, from initiating the transfer to receiving the cash.