You can submit a disk with the file or send the file as an email "attachment." (Click on File/Attach, find the file in the dialog box that opens up, click Create. The file should then appear as an icon. Suppose you recieve such a file. If you double clicks on the icon, you can "launch it," i.e. open it up in the appropriate package, or you can "detach it", i.e. \ save it, or you can "view it.") Due: Sept. 20