Is it possible to do more with the ms-excel type than create simple data sheets? For example, can I also create macros and set options in the excel file generated with the excel mime-type? In addition to sending the spreadsheet data we'd also like to create a macro that generates a graph from the data and have this graph automatically generated when the user opens the file. But I've never done anything with this mime type other that create a simple spreadsheet. So my questions are what are the capabilities of the excel mime type and is there a way to do the specific graphing task I mentioned above. Thanks.