Imagine you are playing with your toy blocks, and you have built a really cool tower. You want to show it to your friend who lives far away. In order to show your tower to your friend, you need to take it apart and put it in a special box that your friend can open.
Similarly, Portable Executable is like a special box that takes apart and puts together computer programs so they can be shared between different machines. When a computer program is created, it is written in a language that only the computer can understand. However, Portable Executable is something that can take this code and translate it into a form that can be read and run by other machines.
Just like how you put your toy blocks into the box and send it to your friend, Portable Executable puts the translated code into a file that can be shared with other computers. This file contains all the information that is needed to run the program, including the code, data, and other important information.
So, to put it simply, Portable Executable allows computer programs to be easily shared between different machines so everyone can enjoy them.