How can I withdraw money from my Bitcoin wallet?

Hello, I have a question about withdrawing money from my Bitcoin wallet. Could you guide me through the process? I'm a bit unfamiliar with the cryptocurrency world and need some clarification. Do I need to convert my Bitcoins to another currency first, or can I withdraw them directly? Also, are there any fees associated with the withdrawal process? Could you please explain the steps I should follow to ensure a smooth and secure transaction? I appreciate your help in this matter.