I want to allow an Excel report to be viewed embedded in a WebPage... is there a way?
I don't want to use an ActiveX, or OWC (Office Web Components), I just want to open an existing file from the internet explorer application.
I don't want users to download and then open it.
Using an iframe wouldn't be a problem, but my preliminary tests weren't successful
Any ideas? Is it at all possible?
I think your best bet is going to be extracting the data out of the Excel file and displaying it in a regular HTML table. Excel isn't exactly safe to invoke from a web page and not everyone has it anyway.
in your comments you say that the Excel file is on the client's filesystem, not on the webserver. i think the security model of sane browsers forbid this; but wouldn't be surprised if setting high permissions to your pages could allow this.
You should try using the Excel Web App Embed feature that lets you embed tables and charts from Excel directly on your Web Page. You can even let users interact with the spreadsheet so that they can sort and filter data and use your spreadsheets formulas to calculate make their own calculations all without altering the source.
The Excel Web App and storage is all free from Microsoft. Any data you embed on your Web page can be viewed by all the major destkop and mobile browsers and when you update your spreadsheet the data on your web pages is automatically updated as well.
Excel Web App allows embedding "live" interactive spreadsheets on a web page. For an example, see http://datawiz.wordpress.com/2011/01/10/how-to-embed-excel-on-a-web-page/
This has to do with the local person's browser set up and not really anything you can do on your end. If they click a link with the .xls(x) extension, the browser determines if it wants to open it itself or in a new window.
Here is a microsoft page on how to change these settings: http://support.microsoft.com/kb/162059