Why my illustrator file is so large? I've tried the tips I found in google.

Hi, I have two files, their dimensions are the same.
One is only 87kb while the other is more than 2mb.
The 87kb one is downloaded from the internet, the other one is mine.
I deselected "Create PDF Compatible File" when saving Illustrator file, but it's still so big.
Here's the two files.
https://www.dropbox.com/s/ptbckg5z7abecc5/818B.ai?dl=0
https://www.dropbox.com/s/fmq4p61uj69kfgi/lama2.aep?dl=0

Sorry man, my bad.
Here we go.
https://www.dropbox.com/s/ctvzdxqpcr6lbol/llama%20nation%20logo%20and%20col...

Hi man,
They are all pdf available, take a look.
http://prntscr.com/86efng

By the way, this is a great website that you can create screenshot and share them to other people the easiest way.

I think that's because they are created by cc and you're using cs6, maybe?

By "compressed" you mean this button?