sys.stdout = io.TextIOWrapper(sys.stdout.buffer, encoding=’utf-8′)

python -m pip install –upgrade pip

pip install openpyxl
PS C:\Users\yu2ka\Documents\My Business\Python\excel_python\03\python_prg> python sales_slip2csv.py
Traceback (most recent call last):
File “sales_slip2csv.py”, line 12, in <module>
wb = openpyxl.load_workbook(pass_obj)
File “C:\Users\yu2ka\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\openpyxl\reader\excel.py”, line 312, in load_workbook
reader = ExcelReader(filename, read_only, keep_vba,
File “C:\Users\yu2ka\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\openpyxl\reader\excel.py”, line 124, in __init__
self.archive = _validate_archive(fn)
File “C:\Users\yu2ka\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\openpyxl\reader\excel.py”, line 96, in _validate_archive
archive = ZipFile(filename, ‘r’)
File “C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.8_3.8.752.0_x64__qbz5n2kfra8p0\lib\zipfile.py”, line 1251, in __init__
self.fp = io.open(file, filemode)
PermissionError: [Errno 13] Permission denied: ‘..\\data\\sales\\~$2001.xlsx’