from openpyxl import Workbook

wb = Workbook()
wb["Sheet"].title = "Datas"
sheet = wb.active

data = [('Name','Age','Salary','Year of work'),('Самат',25,2500,5),('Улан',30,32000,7)]
for i in data:
    sheet.append(i)
c1 = sheet.cell(row=2, column=5)
c1.value = sheet['D2'].value * sheet['C2'].value * 12
c2 = sheet.cell(row=3, column=5)
c2.value = sheet['D3'].value * sheet['C3'].value * 12
wb.save("workers.xlsx")