If an OPJ/OPJU file is opened and being worked on in Origin, it will be autosaved every 12 minutes by default and if Origin crashes, user can go to Autosave folder to find it. 

In Origin 2018, if Origin crashes, it will restart with last Autosaved OPJ/OPJU loaded so user doesn't need to manually find it in Autosave folder. 

Note:

• If it happened that Origin crashes before 1st autosave happened, then the original OPJ/OPJU will be loaded. 
• If you have worked on a new project file but never saved it. It is called Untitled.opj Origin doesn't autosave Untitled.opj. 
• Old feature: User can control how often project is autosaved in Tools: Options dialog.