How to implement Error Handling in VBA projects?

Error Handling implementation is one of the best practice to write VBA code. Thus, error handling is very important part of every macro and it ease to handle unexpected exceptions in excel macros. Including error handling code in macro refers to good practice of coding. Because in case of any unexpected exceptions macro code doesn't break. Thus, it is very essential to have error handling in macro to avoid fatal unexpected error occurs in the code. So that we should ensure about proper termination for execution.