upload excel to sql จากพาท ทำไงดีครับ windows form

FileInfo excel = new FileInfo(Server.MapPath(@"Xls/myData.xlsx"));
using (var package = new ExcelPackage(excel))
{
    var workbook = package.Workbook;

    //*** Sheet 1
    var worksheet = workbook.Worksheets.First();

    string strConnString = @"Server=localhost;UID=sa;PASSWORD=;database=mydatabase";
    var objConn = new SqlConnection(strConnString);
    objConn.Open();

    //*** Loop to Insert
    int totalRows = worksheet.Dimension.End.Row;
    for (int i = 2; i <= totalRows; i++)
    {
        string strSQL = "INSERT INTO myTable (Column1,Column2,Column3,Column4,Column5) "
            + " VALUES  ("
            + " '" + worksheet.Cells[i, 1].Text.ToString() + "', "
            + " '" + worksheet.Cells[i, 2].Text.ToString() + "', "
            + " '" + worksheet.Cells[i, 3].Text.ToString() + "', "
            + " '" + worksheet.Cells[i, 4].Text.ToString() + "', "
            + " '" + worksheet.Cells[i, 5].Text.ToString() + "' "
            + ")";
        var objCmd = new SqlCommand(strSQL, objConn);
        objCmd.ExecuteNonQuery();
    }

    objConn.Close();
}