If you open it in Notepad (or Word), you might be able to see among the gobbledegook some of the contacts in your address book. It's a funny file created when you update or change your address book. You can safely delete it.
Samsung Galaxy S8 review
1995-2015: How technology has changed the world in 20 years
This poetic animation about monsters is illustrated in a Van Gogh painterly style
Apple predictions 2017
Synology invites you to visit them at Insomnia on 26th – 29th August. Book your tickets now and visit Synology.