What files can I use for Steam Workshop?

 When saving a file that can be shared on Steam Workshop (for example, a Tactic), you will be given the option to upload and share the file directly to Steam Workshop. You can share the following files on Steam Workshop for FM16:

•  League & Data Updates
•  Challenges
•  Views
•  Filters
•  Tactics
•  Shortlists
•  Match Plans
•  Versus Mode Teams
•  Skins
•  Facepacks
•  Logos
•  Custom Database Options
•  Kits