How many types of files are there ?

1. AIFF

2. Animated GIF

3. Batch File  

4. Bitmap

5. BMP

6. CDFS

7. DLL

8. eBook

9. EXIF

10. GIF

11. JPEG

12. JSON

13. MP3

14. Page Layout

15. PDF

16. PNG

17. PostScript

18. Raster Graphic

19. Raw File

20. RTF

21. Swap File

22. TIFF

23. Torrent

24. Vector Graphic

25. WAVE

26. XMP

27. Zip