The File Sharing tool allows you to share any type of file in rooms.
Currently with mashme.io, you can collaboratively store and share files with extension: .PDF, .JPG, .PNG, .BMP, .MP3 and .MP4.
In addition, all documents derived from tools such as Google Drive Documents, Polls, Notes, Recording or Google Maps are stored and are collaborative.
These files, as long as they are visible, are public to anyone who has access to the room.