If you completely disassemble the game, is it possible to compile it back later, or only with the program that created it?

Question

C++ / C#

Good day. There are xbox dlc files as well as the pc version of the game. If you find out how they are packed, the program or the engine will be able to open them? How to find out with what they are compiled?
Physics Havok
Audio FMOD
Interface Scaleform
Cutscenes Bink

Answer 1

Disassembly is from machine codes to assembler, not to C++
You want to decompile, but complete decompilation is almost impossible - after compilation and linking, the names of functions, variables, files are irretrievably lost, as a result you will get either one large file or several, but not at all what they were.
The essence of decompilation is viewing a specific algorithm, and not restoring the source code to its original state.