Before I used the Aspose.Cells version 6.0.0 and I could save the workbook in Response, as example:
wb.Save(HttpContext.Current.Response, namefile, ContentDisposition.Attachment, new XlsSaveOptions(SaveFormat.Excel97To2003));
Now, I download the new version of Aspose.Cells (220.127.116.11) and I could not used this method.
I would use the save workbook in Response.
Look forward to your feedback.