private void button2_Click(object sender, EventArgs e)
{
string sd;
saveFileDialog1.ShowDialog();
saveFileDialog1.InitialDirectory = "c:";
saveFileDialog1.Filter = "Excel File|*.xls|All Files|*.*";
Microsoft.Office.Interop.Excel.ApplicationClass ExcelApp = new Microsoft.Office.Interop.Excel.ApplicationClass();
ExcelApp.Application.Workbooks.Add(Type.Missing);
ExcelApp.Columns.ColumnWidth = 20;
for (int i = 1; i < dataGridView1.Columns.Count + 1; i++)
{
ExcelApp.Cells[1, i] = dataGridView1.Columns[i - 1].HeaderText;
}
for (int i = 0; i < dataGridView1.Rows.Count - 1; i++)
{
for (int j = 0; j < dataGridView1.Columns.Count; j++)
{
ExcelApp.Cells[i + 2, j + 1] = dataGridView1.Rows[i].Cells[j].Value.ToString();
}
}
sd = saveFileDialog1.FileName;
ExcelApp.ActiveWorkbook.SaveCopyAs(sd+".xls");
ExcelApp.ActiveWorkbook.Saved = true;
ExcelApp.Quit();
MessageBox.Show("Excel file created");
}