It's AOR email format. It should come with a PDF file. Double check your email settings, it sometimes blocks the attachment.
You may also check the status by visiting : http://www.cic.gc.ca/english/my_application/status.asp?s=3
Good luck
Update
Richmond Hill, GTA
App Type - Family of 3
# Days in Canada - 1619
App Mailed - 15 Sept 2017
App Delivered - 18 Sept 2017
AOR Received -20 Oct 2017
In Process -
Test Invite -
Test Date -
Decision Made -
Oath Invite -
Oath -
Richmond Hill, GTA
App Type - Family of 3
# Days in Canada - 1619
App Mailed - 15 Sept 2017
App Delivered - 18 Sept 2017
AOR Received -
In Process -
Test Invite -
Test Date -
Decision Made -
Oath Invite -
Oath -