import numpy as np 
import xlrd #打开excel文件 
data= xlrd.open_workbook('./sudata/ng.xls')#打开Excel文件读取数据 
sh=data.sheet_by_name("Sheet1")##通过工作簿名称获取 
print sh.nrows#行数 5820 
print sh.ncols#列数 2 
n=0 
i=0 
file=open("ng.txt","w") 
for n in range(sh.nrows): 
  for i in range(sh.ncols): 
    text=sh.cell_value(n,i).encode('utf-8') 
    file.write(text)  
    file.write('\n')