What does unpacking do?

06/13/2011 17:30 anderworld#1
I saw a lot of the words unpacked dekaron.exe. Whats the meaning of it?
06/14/2011 12:40 MMOPerfectionİ#2
Basically disassembles the exe and decompresses it.
Allowing you to edit files.

OR
you can google the word lol.