These instructions are for if you want to email your HMC or MLC project file or transfer it to a different directory.
In order to open the project when it has reached it’s destination, both the *.mpl file and the folder with the same name need to be in the same directory:
Create a new folder, and copy into it both the *.mpl project file and it’s namesake folder.
Lastly, “zip” the folder so that it can be sent via email.