i dont have answer for your question

但我建议你学习网站
http：//www.winnovative- software.com/
从这个网站你可以得到wnuxls.dll
文件，我们要执行与excel的所有功能尝试它

but I suggest you to study the site http://www.winnovative-software.com/ from this site you can get wnuxls.dll file which have all the functionality which we want to perform with excel try it