Help, how can I get it back as an assignment (it is still in Files) so I can assign it later in the year?
You can try the undelete trick. See more details at the link below.
Undeleting things in Canvas
Thank you so much. This worked!
Laura, if you still have the original file attached to the Canvas assignment, could you just create a new version of the assignment with the correct due date, or had students already submitted?
They had already submitted. Thanks though!
Retrieving data ...