using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using Application = Microsoft.Office.Interop.Excel.Application;
using Microsoft.Office.Interop.Excel;
using System.IO;
using System.Reflection;
using System.Diagnostics;
using System.Runtime.InteropServices;namespace ExcelTest
{public partial class Form1 : Form{public Form1(){InitializeComponent();}string fileName;Workbook workbook;object missing = Missing.Value; Application app;private void button1_Click(object sender, EventArgs e){try{app = new Application(){Visible = false};workbook = app.Workbooks.Add();fileName = System.Windows.Forms.Application.StartupPath + "\\excel.xlsx";SaveAsFile();}catch (Exception ex){MessageBox.Show(ex.Message);}}public void SaveAsFile(){if (string.IsNullOrEmpty(fileName)){throw new Exception("没有指定输出文件路径！");}XlFileFormat fileFormat;if (String.Compare(Path.GetExtension(fileName).ToLower(), ".xlsx", false) == 0){fileFormat = XlFileFormat.xlWorkbookDefault; //Excel 2007版本
            }else{fileFormat = XlFileFormat.xlAddIn8;//Excel 2003版本
            }try{//workbook.Save();
                workbook.SaveAs(fileName, fileFormat, missing, missing, missing, missing, XlSaveAsAccessMode.xlExclusive, missing, missing, missing, missing, missing);}catch (Exception ex){// ExceptionLog.Instance.WriteLog(ex, LogType.UI);throw;}finally{Dispose();}}private void Dispose(){int appHwnd = 0;try{if (workbook != null){workbook.Close(true, missing, missing);System.Runtime.InteropServices.Marshal.ReleaseComObject(workbook);workbook = null;}if (app != null){appHwnd = app.Hwnd;app.Workbooks.Close();app.Quit();System.Runtime.InteropServices.Marshal.ReleaseComObject(app);app = null;}}catch (Exception ex){//ExceptionLog.Instance.WriteLog(ex, LogType.UI);throw ex;}GC.Collect();if (appHwnd > 0){KillExcelProcess(appHwnd);}}[DllImport("User32.dll", CharSet = CharSet.Auto)]private static extern int GetWindowThreadProcessId(IntPtr hwnd, out int ID);private static void KillExcelProcess(int appHwnd){Process[] ps = Process.GetProcesses();IntPtr t = new IntPtr(appHwnd); //得到这个句柄，具体作用是得到这块内存入口 int ExcelID = 0;GetWindowThreadProcessId(t, out ExcelID); //得到本进程唯一标志foreach (Process p in ps){if (p.ProcessName.ToLower().Equals("excel")){if (p.Id == ExcelID){p.Kill();}}}}}
}