Are you running Windows by chance? I had a problem with missing file extensions on Windows because the system default is to hide extensions for known file types. A quick Google search will tell you how to disable this.
Unfortunately there is no way you can know if your users have this enabled or disabled so you need to write some code to handle this possibility. --- In flexcoders@yahoogroups.com, "markflex2007" <markflex2...@...> wrote: > > Hi, > > I did this > > var fileRef:FileReference = new FileReference; > fileRef.save(bytes, 'books.xls'); > > but the popup save window only have "books". I need the window have > "books.xls" > > Why the extension is missing.Please help. > > Thanks > > Mark >