Enlargement; additional time after service

1.443(1) Enlargement. When by the rules in this chapter or by a notice given thereunder or by order of court an act is required or allowed to be done at or within a specified time, the court for cause shown may at any time in its discretion do the following: a. With or without motion or notice order the period enlarged if request therefor is made before the expiration of the period originally prescribed or as extended by a previous order. b. Upon motion made after the expiration of the specified period permit the act to be done where the failure to act was the result of excusable neglect; but it may not extend the time for taking any action under rules 1.1001, 1.1003, and 1.1004, except to the extent and under the conditions stated in