Here's a cool new feature that Wix just released in December 2018 – the Wix File Share.
It looks like the Wix File Share allows users to create a file library where you and your website community can easily share files with one another. Site members can search for specific files and organize them in folders for easy access. Great for collaborating with clients, teams, students and community members.
Plus, give site members custom access permissions, and decide who can view, upload, download and manage files.
Share any file format on your site
Control who can view, upload, download and manage files
Find files quickly with folders and filtered search options
Manage and view files on-the-go
I'll check this out and post my thoughts on it, it may come in useful for sure!