Files moving and transfering

I use a single thread in order to ask my doubts to this community. They are fundamental troubles for my future here.
There will be a day in which I can think to migrate to a paid hosting service; so I understand I can't perform downloads for copyrights and the same of uploading for security reasons, but how I can transfer databases files, schematics and non-editable files in general without losing important amounts of data in my hypothetical new server ?

What about editable files, I will have to copy and paste the text for each one of them regardless the sizes or I can access a faster option ?
Last question but about about the present day, if I need to move .schematic files from WorldEdit folder to ASkyBlock folder to have custom starting islands, how I can do it ?

Thanks for your free opportunity and kind regards from Italy,
Andrea

Ok, thanks for the prompt answer, I will behave by consequence knowing the situation.

Nothing to reply, free to close the discussion.

A greeting,

Andrea