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Models regeneration at the opening of a scene

Question asked by florinette on Feb 24, 2014
Latest reply on Feb 24, 2014 by florinette
When opening a scene,to the question " you want to regenerate these models" I replied no.
The scene opened without the 3293 models , I just wanted to manage (desactivate some trees),then I closed the scene saving the changes ( I should´nt have done it I guess).
When opening it again later, I was not asked if I wanted to regenerate the models, the scene consequently opened without the models.
I controlled in the properties of the scene the actual size . No changes : 296'273'940 bytes as before my mistake.
How can I regenerate the models ?
Did I lose several weeks of work ?