These are the demos on your website that I'm talking about. Are you saying that your demo doesn't use that line of code and that's why it does that? If so, why wouldn't you use that in your demo?
Actually we provide two ways of retrieving / opening the resutant file i.e., OpenInExcel and OpenInBrowser. The demos you are talking about uses the lines as:
workbook.Save("Book1.xls", SaveType.OpenInBrowser, FileFormatType.Default, this.Response);
Now Take a look and try these demos: http://www.aspose.com/demos/aspose.cells/workbookdemos.aspx and you will notice that these demos will work fine without generating any info message as these demos use the following line as e.g.., :
I can't control what the clients have installed on their computers. They may be Mac or PC, they may have XP or Vista, they may have any version of Office, or something like OpenOffice. Will this product work under all of those conditions or are there restrictions on which OS/Browser/Software combinations will work?
Well, don't worry you don't need to control that any longer. Yes, surely, Aspose.Cells work fine without any issue and there is no restriction related OS, BrowserType or softwares what so ever.