Can I convert USDC to USD?

I'm just a bit confused about the conversion process. Could you please explain to me if it's possible to convert USDC to USD? I've heard that USDC is a stablecoin pegged to the US dollar, but I'm not sure how the actual conversion works. Do I need to go through a specific exchange or platform? Are there any fees involved? I'm just starting to get into cryptocurrencies and finance, so any information you could provide would be greatly appreciated.