the xlsx guess to zip file : <img width="280" alt="image" src="https://user-images.githubusercontent.com/18260135/185645593-300fe223-46ac-4b47-8031-f1652e3a0041.png"> the file : [test_filetype.xlsx](https://github.com/h2non/filetype.py/files/9383051/test_filetype.xlsx)
