Is there any specific place in Meteor semantics where i can store files? I know only that i should set this place in Meteor.Setting. Could any show my where i can get more details about that (except Meteor Docs.).
in /public or /private depending on the use case.
/public for publicly accessible files like images, icons, etc.
/private for files you can access with the Assets api server-side only.
The section about special directories in the meteor guide: http://guide.meteor.com/structure.html#special-directories