Cell fracture explosion with followed by reform of the object? How can I explode an object then have them come back to form the original object. Kind of like going back in time.
The object is cell fractured into many peaces and it uses a ball object to explode it out. But how do I make the exploded pieces come together to original form?
To do what your asking:

You can bake the rigid body action by pressing Space, then searching for Bake Action. This will convert the rigid body simulation to an actual animation for the object.

Trim off the extra animation (when the objects fall forever):


Duplicate the remaining keys, press S (scale), then type -1. This will flip the keys.


Position them after the original keys:



And you get: