Ok, I have a plain text file, with the extension .xxt. When you open the browser I want it to ask you to download it. However, in both Opera and IE8 just load the content into the browser. If I add the type octet-stream to the extension, nothing happens. If I add msdownload or msword, the file is then downloadable in Opera - but not IE8. So how can I force that extension to be downloaded? Cheers.