Comment on Schoolhouse

SCHOOLHOUSE CRASH:

I really like this app, but today after entering my assignments for several of my courses for the entire semester, schoolhouse CRASHED on me, and when I tried to reopen it, I kept getting the message "schoolhouse unexpectedly quit..." After trying a bunch of things, and restarting my computer multiple times, I gave up.

I do not want to use schoolhouse again If there is the possibility of losing hours of work inputting assignments again.

Does anyone know how to back up schoolhouse on an external hd?
(When I drag & drop it onto my hd, it only saves the application, not any of my own entries.)

The "schoolhouse help" says to "click on file, export", but there is no such thing as "export" under the file menu or any other menus.