在python安装目录下安装easy-install，然后安装xlrd和xlwd模块
from xlwt import Workbook, Formula
import xlrd
from pyExcelerator import *
w = Workbook()
ws = w.add_sheet('Sheet1')
fname = r'E:\1.xlsx'
bk = xlrd.open_workbook(fname)
shxrange = range(bk.nsheets)
sheet1 = bk.sheet_by_name("Sheet1")
nrows = sheet1.nrows
ncols = sheet1.ncols
print "nrows %d, ncols %d" % (nrows,ncols)
r = 0
for i in range(0,nrows):
s = sheet1.cell_value(i,1).split(',')
for j in range(0,len(s)):
ws.write(r,0,sheet1.cell_value(i,0))
ws.write(r,1,s[j])
r = r + 1
w.save('E:\\a.xls')