Dice Roller

This Calc extension allows the user to roll any number of any type of die in a cell by typing =ROLL(number_of_dice;number_of_sides;0;0).
The first of the two zeros denotes the type of roll, 0 represents a straight roll, it just adds all of the rolls together, 1 represents the command to discount the lowest roll. The second zero is a roll modifier, it modifies the roll by its value, if say, it was a 4 the value of the roll is increased by 4.