If you’re named as executor in someone’s will, you’re responsible for carrying out the terms of the will when they die.
To do this you may have to apply for Probate
Probate is the formal seal of a will by the Supreme Court. It provides the executors of the estate with certainty regarding the administration of the estate.
To do this, you may have to apply for probate, which is the court’s recognition that the will is legally valid and you’re authorised to deal with the estate.