Hello all!
Unfortunately, for the second or third time, all my addons have reset, but from past expeirience, before logging out I backed up my WTF folder and I have a backup from longer ago, following this forum thread: https://us.battle.net/forums/en/wow/topic/20762146064. However, I am unsure how to go about backing up my Lua files with my Lua.bak, and if I need to do it manually for all of my addons and characters? (I have alot of addons and would take a long time). Thanks! 
Edit: I think i should rename all the .lua.bak files to .lua, and then copy them from the backup to the live folder, but there are so many it would take hours? And i don’t really know if that is right anyway.
TL;DR: How should I restore my backup to my current settings?