C#操作Excel（导入导出）

/// <summary>
/// 创建excel文档
/// </summary>
/// <param name="Path"></param>

public void CreateExcel(string Path)
{
try
{
///定义一个Missing值,这样我们用不到的设定值就可以用Missing来代替了.
object m_objOpt = System.Reflection.Missing.Value;
///建立新的Excel应用
Excel.Application m_objExcel = new Excel.Application();　
　 ///获取应用中的所有数据表
Excel.Workbooks m_objBooks = (Excel.Workbooks)m_objExcel.Workbooks;　　
///新建数据表
Excel._Workbook m_objBook = (Excel._Workbook)(m_objBooks.Add(m_objOpt));　　
///获取数据表中所有工作表
Excel.Sheets m_objSheets = (Excel.Sheets)m_objBook.Worksheets;　　
///选取第一个工作表
Excel._Worksheet m_objSheet = (Excel._Worksheet)(m_objSheets.get_Item(1));　　
///命名工作表为"原始数据表"
//m_objSheet.Name="原始数据表";　　
///定义一个object数组
　 object[] objTitle = {"地区","统计时间", "成功条数", "失败条数"};
///获得表格区域,区域从A1开始
　　 Excel.Range m_objRange = m_objSheet.get_Range("A1", m_objOpt);　
　 ///定义表格区域为1行,"objTitle的个数"列
m_objRange = m_objRange.get_Resize(1,objTitle.Length);　
　 ///将objTitle写入表格区域中,Excel会自动对齐的呵呵,放心
m_objRange.set_Value(m_objOpt,objTitle);　　

///保存Excel文件
　　 m_objBook.SaveAs(Path, m_objOpt, m_objOpt,
m_objOpt, m_objOpt, m_objOpt, Excel.XlSaveAsAccessMode.xlNoChange,
m_objOpt, m_objOpt, m_objOpt, m_objOpt, m_objOpt);　　
///关闭数据表
　　 m_objBook.Close(false, m_objOpt, m_objOpt);
///关闭Excel应用
　　 m_objExcel.Quit();
listinfo.Invoke(bindListViewDelegate, new object[] { "创建数据表：" + Path+"成功！"});
writelog(DateTime.Now.ToString() + "创建数据表：" + Path + "成功！");
}
catch (Exception ex)
{
listinfo.Invoke(bindListViewDelegate, new object[] { "创建Excel发生错误：" + ex.Message });
writelog(DateTime.Now.ToString() + "创建数据表：" + Path + "异常：" + ex.Message);
}

}
/// <summary>
/// 写入Excel文档
/// </summary>
/// <param name="Path">文件名称</param>
public void SavetoExcel(string Path,DataSet dsexcel)
{
try
{
if (dsexcel == null)
return ;
string strConn = "Provider=Microsoft.Jet.OLEDB.4.0;" + "Data Source=" + Path +";" + "Extended Properties=Excel 8.0;";
OleDbConnection conn = new OleDbConnection(strConn);
conn.Open();
System.Data.OleDb.OleDbCommand cmd = new OleDbCommand();
cmd.Connection = conn;

for (int i = 0; i < dsexcel.Tables[0].Rows.Count; i++)
{

cmd.CommandText = "INSERT INTO [sheet1$] VALUES('" + dsexcel.Tables[0].Rows[i][0].ToString() + "','" +
dsexcel.Tables[0].Rows[i][1].ToString() + "','" + dsexcel.Tables[0].Rows[i][2].ToString() +
"','" + dsexcel.Tables[0].Rows[i][3].ToString() + "')";
cmd.ExecuteNonQuery();

}
dsexcel.Clear();
dsexcel.Dispose();
conn.Close();
listinfo.Invoke(bindListViewDelegate, new object[] { "写入Excel文件"+ Path +"成功：" });
writelog(DateTime.Now.ToString() + "写入Excel文件：" + Path + "成功！");
}
catch (Exception ex)
{
listinfo.Invoke(bindListViewDelegate, new object[] { "写入Excel发生错误：" + ex.Message });
writelog(DateTime.Now.ToString() + "写入Excel：" + Path + "异常：" + ex.Message);
}

}

/// <summary>
/// 读取Excel文档
/// </summary>
/// <param name="Path">文件名称</param>
/// <returns>返回一个数据集</returns>
public DataSet ExcelToDS(string Path)
{
string strConn = "Provider=Microsoft.Jet.OLEDB.4.0;" +"Data Source="+ Path +";"+"Extended Properties=Excel 8.0;";
OleDbConnection conn = new OleDbConnection(strConn);
conn.Open();
string strExcel = "";
OleDbDataAdapter myCommand = null;
DataSet ds = null;
strExcel="select * from [sheet1$]";
myCommand = new OleDbDataAdapter(strExcel, strConn);
ds = new DataSet();
myCommand.Fill(ds,"table1");
return ds;
}