Revocation

A will can only be revoked by creating a new will or codicil, by writing a statement declaring the intention to revoke it and executing it like a will, or by physically destroying it with the intention of revoking it.

Alterations

Any changes made to a will after it has been executed are not valid unless they are made and executed according to the law.

Revocations

If a will is revoked, it can only be revived by re-executing it or by a codicil executed according to the law that shows an intention to revive it.

Conveyances

Any conveyance or act made after a will has been re-executed, except those that revoke the will, do not affect the operation of the will with respect to the property that the testator had the power to dispose of by will at the time of their death.

NL Wills Act s.11-14