Key error after updating Spider and Anaconda
Issue solved: the excel file was corrupted
After updating to Spyder 4.0.0 (from Spyer 3.7) I get following error on scripts that worked fine before:
File "C:\Users\Usuario\Anaconda3\lib\zipfile.py", line 1395, in getinfo
    'There is no item named %r in the archive' % name)
KeyError: "There is no item named '[Content_Types].xml' in the archive"
With python 3.7.4 I did not get this error. Now with 3.7.1 I have this issue. 
Any suggestion? where can I find the root of the issue?
Thank you.
Best regards,