load_workbook error in 3.0.5 not in 3.0.4
The attached file cannot be opened by openpyxl 3.0.5, while it works for version 3.0.4
import openpyxl as oxl
oxl.load_workbook('openpyxl.xlsx')
/lib/python3.7/site-packages/openpyxl/descriptors/sequence.py in __set__(self, instance, seq)
23 def __set__(self, instance, seq):
24 if not isinstance(seq, self.seq_types):
---> 25 raise TypeError("Value must be a sequence")
26 seq = [_convert(self.expected_type, value) for value in seq]
27 if self.unique:
TypeError: Value must be a sequence