Python writes data in the original excel

There is an excel: pyExcelTest.xlsx
writes data in its sheet page

Current directory:

from openpyxl import load_workbook
wb = load_workbook("pyExcelTest.xlsx")#生成一个已存在的wookbook对象
wb1 = wb.active#激活sheet
wb1.cell(3,3,'pass')#往sheet中的第三行第三列写入‘pass’的数据
wb.save("pyExcelTest.xlsx")#保存

If there is a path:

from openpyxl import load_workbook
wb = load_workbook("C:\\Users\\18210\\Downloads\\pyExcelTest.xlsx")#生成一个已存在的wookbook对象
wb1 = wb.active#激活sheet
wb1.cell(3,3,'pass')#往sheet中的第三行第三列写入‘pass’的数据
wb.save("C:\\Users\\18210\\Downloads\\pyExcelTest.xlsx")#保存