Which permissions does the File Owner have in Chatter which a File Collaborator does not...

‘Make files private’ permission and ‘delete files’ permission. A File Collaborator has these permissions on a file View, download, share, change permission, edit the file, upload new versions of the file while a File Owner has these permissions on a file. View, download, share, change permission, edit the file, upload new versions of the file, make files private, delete files.