You want to let users download files to their computer.
Use the download() method of a FileReference object.
The flash.net.FileReference class defines a download() method that allows users to download a file from a URL to their computers. When Flash Player calls the download() method, it attempts to open a dialog box, titled “Select location for download.” This dialog box allows users to use a standard operating system dialog to browse their local disks for a location to which they want to save files.
The first step before calling the download() method is to construct a FileReference object, as follows:
var fileReference:FileReference = new FileReference();
The download() method requires at least one parameter as a URLRequest object, specifying the URL from which you want to download the file. In the simplest case, the URL points to a static file that the user can download. The following example opens a save dialog box that allows users to select a location to which they can save a copy of example.txt from the same directory on the server where the SWF resides:
var urlRequest:URLRequest = new URLRequest("example.txt"); fileReference.download(urlRequest);
Specifying a full path to a file is as simple as specifying the URL when constructing the URLRequest object, as the following example illustrates:
var urlRequest:URLRequest = new URLRequest("http://www.myexamplesite.com/example.txt"); fileReference.download(urlRequest);
The save dialog box also ...