c#强制关闭当前Excel进程

 public class KillExcel
        {
            [DllImport("User32.dll", CharSet = CharSet.Auto)]
            public static extern int GetWindowThreadProcessId(IntPtr hwnd, out int ID);


            /// <summary>  
            /// 强制关闭当前Excel进程  
            /// </summary>  
            public static void Kill(IntPtr intPtr)
            {
                try
                {
                    Process[] ps = Process.GetProcesses();
                    int ExcelID = 0;
                    GetWindowThreadProcessId(intPtr, out ExcelID); //得到本进程唯一标志k     
                    foreach (Process p in ps)
                    {
                        if (p.ProcessName.ToLower().Equals("excel"))
                        {
                            if (p.Id == ExcelID)
                            {
                                p.Kill();
                            }
                        }
                    }
                }
                catch
                {
                    //不做任何处理     
                }
            }
        }