在前面的文章中介绍了如何用Python读写Excel数据，今天再介绍一下如何用Python修改Excel数据。需要用到xlutils模块。下载地址为https://pypi.python.org/pypi/xlutils。下载后执行python setup.py install命令进行安装即可。
具体使用代码如下：

复制代码 代码如下:

--coding:utf-8--

from xlutils.copy import copy # http://pypi.python.org/pypi/xlutils
from xlrd import open_workbook # http://pypi.python.org/pypi/xlrd
from xlwt import easyxf # http://pypi.python.org/pypi/xlwt

import sys
reload(sys)
sys.setdefaultencoding('utf-8')

0 based (subtract 1 from excel row number)

START_ROW = 404

ismal_index = 2

url所在列

url_index = 12

domain所在列

domain_index = 11

malinfo所在列

malinfo_index = 9

file_path = "C:\\Users\\***\\Desktop\\20130514.xls"

formatting_info=True保存之前数据的格式

rb = open_workbook(file_path,formatting_info=True)
r_sheet = rb.sheet_by_index(0) # read only copy to introspect the file
wb = copy(rb) # a writable copy (I can't read values out of this, only write to it)
w_sheet = wb.get_sheet(0) # the sheet to write to within the writable copy

malurl = '''http://xbox.ooqqxx.com/res/ext.jar
http://xbox.ooqqxx.com/res/stat.jar
http://xbox.ooqqxx.com/pages/v.html
http://xbox.ooqqxx.com/pages/extv.html
http://xbox.ooqqxx.com/pages/r.html'''
domain_info = "http://xbox.ooqqxx.com"
malinfo = u"获取恶意URL，写入配置文件中，下载恶意可执行程序。"

r_sheet.nrows为总行数

for row_index in range(START_ROW, r_sheet.nrows):

xlsvalue = r_sheet.cell(row_index, col_age_november).value

w_sheet.write(row_index, ismal_index, u'是')  
w_sheet.write(row_index, url_index, malurl)  
w_sheet.write(row_index, domain_index, domain_info)  
w_sheet.write(row_index, malinfo_index, malinfo)  

wb.save(file_path + '.out' + os.path.splitext(file_path)[-1])

wb.save("C:\\Users\\***\\Desktop\\2013.xls")