vb做的上传excel的软件，能实现简单excel文件的上传和下载，请大家多指教。-vb excel upload software to do, to achieve a simple excel file uploads and downloads, please enlighten everyone.

文件切割,特别对于Email上传文件有用,欢迎下载使用(File cutting, especially useful for Email to upload files, welcome to download to use)