ELI5: Explain Like I'm 5

Native and foreign format

Okay kiddo, imagine you have a toy that you really like to play with. It's very special to you because you can do all sorts of things with it, like make it fly, jump or run. You also have a special box where you keep your toys so they don't get lost.

Now, imagine that some of your friends come over to play with you and they bring their own toys. They want to play with your special toy too, but your toy doesn't fit in their toy box. Your toy is like a native format, it only fits in your toy box.

On the other hand, your friends' toys have a different shape and can fit in their toy box, which is like a foreign format. In order to play with their toys, you have to take them out of their box and put them in a different box that fits all types of toys, like a big toy chest.

So, native format means something is made to work with a specific thing, like your toy that fits in your toy box. Foreign format means something is made to work with lots of different things, like your toy that can fit in a big toy chest.

In computer terms, native format means a file is made to work with a specific program or device, while foreign format means a file can work with many different programs and devices.