Exporting a module is very simple. Click on the "Export" button at the bottom of the module editor. This will generate a zip file containing an empty "Assets" folder,
a .BMM file (in JSON format), and an "Installation.txt" file.
If you are exporting the module merely to save it so that it doesn't get lost, then you are done. If the module is done and you are preparing to distribute it to
other players, there is one more step. Extract the zip file to a folder with the same name and dump all the images you referenced in various "Thumbnail" properties
into the empty "Assets" folder that is inside. Then zip it back and voila, the module is ready to be installed and played!