Cannot add multiple sort conditions

I'm trying to add multiple sort conditions to a worksheet. The file is correctly saved but an error is displayed by Excel while opening it.

Example:

from random import randrange
from openpyxl import Workbook

wb = Workbook()
ws = wb.active

data = [
    ["Fruit", "Quantity", "Price"],
    ["Kiwi", randrange(0, 10, 1), randrange(1, 100, 1)],
    ["Grape", randrange(0, 10, 1), randrange(1, 100, 1)],
    ["Apple", randrange(0, 10, 1), randrange(1, 100, 1)],
    ["Peach", randrange(0, 10, 1), randrange(1, 100, 1)],
    ["Pomegranate", randrange(0, 10, 1), randrange(1, 100, 1)],
    ["Pear", randrange(0, 10, 1), randrange(1, 100, 1)],
    ["Tangerine", randrange(0, 10, 1), randrange(1, 100, 1)],
    ["Blueberry", randrange(0, 10, 1), randrange(1, 100, 1)],
    ["Mango", randrange(0, 10, 1), randrange(1, 100, 1)],
    ["Watermelon", randrange(0, 10, 1), randrange(1, 100, 1)],
    ["Blackberry", randrange(0, 10, 1), randrange(1, 100, 1)],
    ["Orange", randrange(0, 10, 1), randrange(1, 100, 1)],
    ["Raspberry", randrange(0, 10, 1), randrange(1, 100, 1)],
    ["Banana", randrange(0, 10, 1), randrange(1, 100, 1)]
]

for r in data:
     ws.append(r)

ws.auto_filter.ref = "A1:C15"
ws.auto_filter.add_sort_condition("B2:B15", descending=True)
ws.auto_filter.add_sort_condition("C2:C15")

wb.save("filtered.xlsx")