How to unzip Sentinel-5P file

I can’t unzip a .zip file downloaded from Copernicus Open Access Hub. I retrieve the file and i try to unzip it using the following Python script:

from sentinelsat.sentinel import SentinelAPI
import zipfile

user = 's5pguest' 
password = 's5pguest' 

api = SentinelAPI(user, password, '')"cb078cce-ed6e-46a7-a614-e13830b2a74a")

# The file is succesfully downloaded
zip_ref = zipfile.ZipFile("", 'r')

The file is succesfully downloaded, but when it tries to unzip i get:

BadZipFile                                Traceback (most recent call last)
<ipython-input-3-45c213a35459> in <module>
---> 11 zip_ref = zipfile.ZipFile("", 'r')
     12 zip_ref.extractall()
     13 zip_ref.close()

~/anaconda3/lib/python3.6/ in __init__(self, file, mode, compression, allowZip64)
   1129         try:
   1130             if mode == 'r':
-> 1131                 self._RealGetContents()
   1132             elif mode in ('w', 'x'):
   1133                 # set the modified flag so central directory gets written

~/anaconda3/lib/python3.6/ in _RealGetContents(self)
   1196             raise BadZipFile("File is not a zip file")
   1197         if not endrec:
-> 1198             raise BadZipFile("File is not a zip file")
   1199         if self.debug > 1:
   1200             print(endrec)

BadZipFile: File is not a zip file

If i try to unzip this file from the terminal with unzip i get:

End-of-central-directory signature not found.  Either this file is not
  a zipfile, or it constitutes one disk of a multi-part archive.  In the
  latter case the central directory and zipfile comment will be found on
  the last disk(s) of this archive.
unzip:  cannot find zipfile directory in one of or, and cannot find, period.

If i try with 7zip i get:

7-Zip [64] 9.20  Copyright (c) 1999-2010 Igor Pavlov  2010-11-18
p7zip Version 9.20 (locale=it_IT.UTF-8,Utf16=on,HugeFiles=on,4 CPUs)

Processing archive:

Error: Can not open file as archive

It seems like the file is corrupted, but if i try to download other files the error remains.
I also tried to change the name in a simpler one like “”, without success.
I’m stucked, any ideas?

PS: i’m following this tutorial

It seems like the files are actually .nc files, but are wrongly being given the extension .zip. So if you rename the files to .nc they should work. See more here: