ValueError:使用OpenPyXl时，行或列值必须至少为1

i have been using Python for Finance, by Yves Hilpisch, specifically chapter 12 as a guide to learning how to integrate Excel and Python. I am currently learning how to use OpenPyxl. However the code that i have directly copied from the book isnt working and i keep getting a ValueError. Here is the code that i am using:i have been using Python for Finance, by Yves H