A party taking a deposition is not obliged to offer the same in evidence. Where properly taken and filed, he may, at his option, offer the whole, or any part, of the deposition in evidence, or he may reject it all. His adversary may then, if he choose, offer in evidence such parts of the deposition not offered by the party taking the deposition as he deems advisable, or he may offer the whole deposition, if it is entirely rejected by the party at whose instance it was taken.

There are decisions in a few jurisdictions to the effect that all or none of the deposition must be introduced, but this view is contrary to the great weight of authority in the United States.

It has been held that a deposition, even though not complying with all the statutory formalities, taken in another action between different parties, and ordinarily inadmissible, may be used to contradict the testimony of a witness, or as an admission against interest if he is a party to the suit in which offered.