C#实现两个结构相同的Excel文件合并的功能，速度非常快，采用区域复制的原理来实现两个Excel文件的合并。-C# to achieve the same two structures merge the functions of Excel files, very fast, with the region to implement the principle of copying Excel files to merge the two.

从infragistics控件中抽取出来的直接用BIFF8格式写Excel文件的类，速度超快-From the infragistics controls directly extracted written in BIFF8 format Excel file class, super fast

监控指定磁盘或文件夹 文件操作（包含子文件夹操作）