Python读取xls文件

1、这里面有个问题在读取xlsx的时候有点问题，汇报异常，要把文件名字改成xls

import xlrd
import os
def getdata():
    file_path = os.path.dirname(os.path.abspath(__file__))
    base_path = os.path.join(file_path, '1.xls')
    book = xlrd.open_workbook(base_path)
    sheet1 = book.sheets()[0]
    nrows = sheet1.nrows
    print('表格总行数', nrows)
    ncols = sheet1.ncols
    print('表格总列数', ncols)
    for i in range(nrows):
         print("\n")
         for j in range(ncols):
            ctype = sheet1.cell(i, j).ctype  # 表格的数据类型
            cell = sheet1.cell_value(i, j)

            if ctype == 0:#str类型
                if(len(cell)== 0):
                    print(".",end='')#没有数据就用.来代替
            elif ctype == 2 and cell % 1 == 0.0:  # ctype为2且为浮点
                cell = int(cell)  # 浮点转成整型
                print(cell , end="")

def main():
    getdata()
    pass
if __name__ =="__main__":
      print("start")
      main()