Yes it does.Recuva doesn't find .wld files.
Yes it does.
View attachment 133951
Unless I'm misunderstanding what you're looking for. Are you trying to find a program that can recognize a Terraria world file by its file pattern even when it's completely gone from the directory index? (Like some programs can do for images) If so I'm afraid I haven't a clue where you'd find something like that.