When this menu item is selected, the Convert DFF file dialog shown in Figure 1 is displayed.
For example, when distributing a JWM dictionary, press the . . . -> DFF button and select the dictionary from the Dict folder. A file will be created with the name of the dictionary (suffixed with .dff) at the same location as the dictionary.
This single DFF file can then distributed. To decode the file, the recipient presses the DFF -> . . . button in the Convert DFF file dialog, selects the file and original dictionary will be correctly reconstituted at the same location as the DFF file.
Aladdin DropStuff, available for MacOS and Windows from www.aladdinsys.com, can be used to package a number of DFF files in a single compressed StuffIt archive (usually having a '.sit' filename extension) for easy distribution. Zip archives (usually having a '.zip' filename extension) are also very popular and utilities to compress and decompress using this format are widely available on MacOS, Windows and Linux platforms.