For school students! 
- If it’s an essay get it to the word limit (so the filesize is reasonable)
- Change the file extension of the file your teacher wants you to turn in to “.txt”
- Delete a couple of random chunks of text, type some random letters if you feel so inclined
- Save the file
- Change the file extension back to what it originally was
- Open the file again to confirm the corruption worked
- Profit.
hope you will like this trick, please don’t misuse these tricks anywhere.
!