New Post: Reading excel sheet without saving

           modified code as per you suggested. Is this ok? 

            MemoryStream memStream = new MemoryStream();
            Stream myStream = FileUploadControl.PostedFile.InputStream;

            myStream.CopyTo(memStream);

           IExcelDataReader excelReader = ExcelReaderFactory.CreateBinaryReader(memStream);
          excelReader.IsFirstRowAsColumnNames = true;
          DataSet ds1 = excelReader.AsDataSet();
          excelReader.Close();