Exception from HRESULT: 0x800AC472 during Export to excel from datagridview

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C#

Windows

hi I want to export datagridview data to excel but after 1198 records it is showing the error Exception from HRESULT: 0x800AC472


please help me

my code here


Microsoft.Office.Interop.Excel._Application app = new Microsoft.Office.Interop.Excel.Application();



Microsoft.Office.Interop.Excel._Workbook workbook = app.Workbooks.Add(Type.Missing);

// creating new Excelsheet in workbook
            Microsoft.Office.Interop.Excel._Worksheet worksheet = null;

            // see the excel sheet behind the program
            app.Visible = true;

            // get the reference of first sheet. By default its name is Sheet1.
            // store its reference to worksheet
            worksheet = workbook.Sheets["Sheet1"];
            worksheet = workbook.ActiveSheet;

            // changing the name of active sheet
            worksheet.Name = "Exported from gridview";


            // storing header part in Excel
            for (int i = 1; i < dataGridView1.Columns.Count + 1; i++)
            {
                worksheet.Cells[1, i] = dataGridView1.Columns[i - 1].HeaderText;
            }



            // storing Each row and column value to excel sheet
            for (int i = 0; i < dataGridView1.Rows.Count - 1; i++)
            {
                for (int j = 0; j < dataGridView1.Columns.Count; j++)
                {
                    worksheet.Cells[i + 2, j + 1] = dataGridView1.Rows[i].Cells[j].Value.ToString().Trim();
                }
            }


            // save the application
            Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
            workbook.SaveAs(Application.StartupPath + "\\Reports\\" + System.DateTime.Now.ToString("dd-MMM-yy") + ".xls", Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlExclusive, Type.Missing, Type.Missing, Type.Missing, Type.Missing);