操作EXCEL完毕后，关闭EXCEL进程

      操作EXCEL过后会发现遗留 EXCEL的进程，读取完毕或者抛异常后直接把进程关掉
/// <summary>
    /// 关闭EXCEL进行
    /// </summary>
    public void CloseProcess()
    {
        System.Diagnostics.Process[] myProcesses = System.Diagnostics.Process.GetProcesses();
        foreach (System.Diagnostics.Process myProcess in myProcesses)
        {
            if ("EXCEL" == myProcess.ProcessName)
                myProcess.Kill();
        }
    }