load_workbook giving value error for string literal - openpyxl

Question

So I am writing a simple test code in python, but I cant seem to load my workbook to read and write into. The workbook I am trying to open has a lot of data and is linked to an Access Database. I am also using Python 2.7.
Here is the code:
from openpyxl import Workbook
from openpyxl import load_workbook
print("here1")
wb = load_workbook("Z:\\PythonFiles\\testexcel2.xlsx")
print("here2")
ws1 = wb.get_sheet_by_name("Output Model")
import datetime
print("here3")
ws1.cell(row=3, column=9).value="Somevalue2"
wb.save("Z:\\PythonFiles\\testexcel2.xlsx")
Now here is the error:
here1
Traceback (most recent call last):
File "Z:\PythonFiles\Test.py", line 4, in <module>
wb = load_workbook("Z:\\PythonFiles\\testexcel2.xlsx")
File "C:\Python27\openpyxl\reader\excel.py", line 233, in load_workbook
parser.parse()
File "C:\Python27\openpyxl\reader\worksheet.py", line 104, in parse
dispatcher[tag_name](element)
File "C:\Python27\openpyxl\reader\worksheet.py", line 235, in parse_row_dimensions
self.parse_cell(cell)
File "C:\Python27\openpyxl\reader\worksheet.py", line 191, in parse_cell
value = _cast_number(value)
File "C:\Python27\openpyxl\reader\worksheet.py", line 55, in _cast_number
return int(value)
ValueError: invalid literal for int() with base 10: '1E-3'

Answer 1

This was a bug in the code which has been fixed. https://bitbucket.org/openpyxl/openpyxl/commits/8cc875b206b08895a1a0ae9ac33cb997a941eddf