list1 = [['张三','男','未婚',20],['李四','男','已婚',28],['小红','女','未婚',18],['小芳','女','已婚',25]]
output = open('data.xls','w',encoding='gbk')
output.write('name\tgender\tstatus\tage\n')
for i in range(len(list1)):
	for j in range(len(list1[i])):
		output.write(str(list1[i][j]))  #write函数不能写int类型的参数，所以使用str()转化
		output.write('\t')  #相当于Tab一下，换一个单元格
	output.write('\n')    #写完一行立马换行
output.close()

list1 = [['张三','男','未婚',20],['李四','男','已婚',28],['小红','女','未婚',18],['小芳','女','已婚',25]]
output = open('data.txt','w',encoding='gbk')
output.write('name,gender,status,age\n')
for row in list1:
	rowtxt = '{},{},{},{}'.format(row[0],row[1],row[2],row[3])
	output.write(rowtxt)
	output.write('\n')
output.close()

M=[[1,2,3,4,5],
[4,5,6,7,8,9],
[5,6,7,8,9]]
output = open('data.txt','w+')
for i in range(len(M)):
for j in range(len(M[i])):
output.write(str(M[i][j]))
output.write(' ') 
output.write('\n') 
output.close()