对表格的数据写操作：
from openpyxl import Workbook
wb=Workbook()
w1=wb.create_sheet('index',0)
# w1["E4"]="碧玉妆成一树高，万条垂下绿丝绦"
# w1.cell(row=3,column=5,value="孤舟蓑笠翁，独钓寒江雪")
w1['A1']=2
w1['A2']=3
w1['A3']=7
w1['A4']='=sum(A1:A3)'
wb.save("myexl.xlsx")
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from openpyxl import Workbook
wb1=Workbook()
w1=wb1.create_sheet("user")
l=["姓名","性别","年龄","地址"]
u1=["kevin","男","23","广东深圳"]
u2=["lisa","女","21","湖北武汉"]
w1.append(l)
w1.append(u1)
w1.append(u2)
wb1.save("book.xlsx")
对表格数据的读操作：
from openpyxl import load_workbook
w1=load_workbook('myexl.xlsx')
print(w1.sheetnames) #获取所有的工作表
wr=w1['index'] #选择要查看的工作表
print(wr['A1'].value) #查看数据 方式一
print(wr.cell(row=3,column=1).value) #查看数据 方式二
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from openpyxl import load_workbook
lw=load_workbook('book.xlsx')
print(lw.sheetnames)
r=lw['user']
print(r['D2'].value)
print(r.cell(row=3,column=1).value)
print(r.max_row) #最大行数
print(r.max_column) #最大列数