使用如下代码，可将Datagridview的内容存入Excel表中：
using Microsoft.Office.Core;
using Excel= Microsoft.Office.Interop.Excel;
Excel.Application excelApp = new Excel.Application();
excelApp.Application.Workbooks.Add(true);
object misValue = System.Reflection.Missing.Value;
if(File.Exists("D:\\List.xls"))
{
File.Delete("D:\\List.xls");
excelApp.ActiveWorkbook.SaveAs(@"D:\List.xls", misValue, misValue, misValue, misValue, misValue, Excel.XlSaveAsAccessMode.xlExclusive, misValue, misValue, misValue, misValue, misValue);
}
else
{
excelApp.ActiveWorkbook.SaveAs(@"D:\List.xls", misValue, misValue, misValue, misValue, misValue, Excel.XlSaveAsAccessMode.xlExclusive, misValue, misValue, misValue, misValue, misValue);
}
string myPath = "D:\\List.xls";
excelApp.Workbooks.Open(myPath);
for (int i = 0; i < dataGridView1.ColumnCount; i++)
{
for (int j = 0; j < dataGridView1.RowCount - 1; j++)
{
excelApp.Cells[j + 2, i + 1] = dataGridView1[i, j].Value.ToString();
}
excelApp.Cells[1, i + 1] = dataGridView1.Columns[i].HeaderText;
}
excelApp.Visible = true;