xlsx and xlsm files return badzipfile: file is not a zip file

Question

I\'m trying to open both an xlsx file and an xlsm file both give me the same error

badzipfile: file is not a zip file

here is wh

Answer 1

In my case the file I accessed had been previously opened and not properly closed by the Workbook.save() method. Because I was debugging my code and failed on this command due to an incorrect path the file became corrupt. I had to delete the file since it could not be restored and create a new one.