Uexp and Ubulk files and how to use them

So, I recently decompiled a .pak file of my game.
Everything went down good and a “myGame.uproject” file appeared. I could open the project and see everything but the assets wouldnt load. If i went to the content folder there were uassets files but also .uexp and .ubulk files.
If anyone knows how to use those files in editor would be great!