private IExcelDataReader GetExcelReader() { //FileStream stream = File.Open(_path, FileMode.Open, FileAccess.Read); Stream stream = new MemoryStream(ToBytes()); IExcelDataReader reader = null; try { if (Extention.EndsWith(".xls")) { reader = ExcelReaderFactory.CreateBinaryReader(stream); } if (Extention.EndsWith(".xlsx")) { reader = ExcelReaderFactory.CreateOpenXmlReader(stream); } return(reader); } catch (Exception) { throw; } }