I get the following error - "OSError: File contains no valid workbook part" when the attached Python script is run. The script is simply trying to load the workbook through a load_workbook() call.
The attached excel file i.e. muthoot.xlsx loads normally when I open it using Excel (on mac, version 15.24) but surprisingly generates this issues when run through the above file.
I am using Python 3.6.1 and openpyxl version 2.4.5.