The witness column of a will is only valid if it is stamped with the official seal and has no signature. The will written by the agent is not signed, which is a form of deficiency. The will written according to the entrustment was concluded after the implementation of the inheritance law. Although the form is deficient, the content is legal, there is sufficient evidence to clearly express the true meaning of the testator, and there is evidence to prove that the testator can't write (including the name) and there is no conflict with other wills. It is generally considered that the will is valid.