Build size and sharedassets0.assets question.

Hit there,

Our company has a project for a standalone PC and Mac Client, we have been working on it for a while and the build is growing on a regular basis. But something happened and our build whent from 360MB to 660MB, and we dont know where that came from.

Ive been investigating the Build Folder and i found that the file that got all the difrence from one earlier build to this one is the "sharedassets0.assets". Ok, so i go looking for what that file is and, correct me if im wrong, i read somewhere that this file compiles all the items in the Resources folders from the project. So i start looking for those folders and find no diference from one an the other, so im out of leads.

Finally the questions are:

What does the "sharedassests0.assets" acctualy has?

and,

Is there a what to see inside them, or what is being compiled in them?