After Compile (.exe), what is the ".._data" folder that makes build larger? Does Pro version rid it?

[Jordan_R]

I am wondering if the bought version of Unity gets rid of this folder that that seems necessary to me, although I bet it is needed but I just wont to know it is always there even in Pro version and if you can rename it?

Thanks

[Mauri]

The “…_Data” folder contains all your game data in compiled form. Removing or unnaming it makes your game unplayable.