Just so you know, we don't know the file format for every file. If it's just a bunch of random characters, it's probably a .zip or .jar.

options:
	prefix: &8[&6Server&8]
	file: plugins/Skript/SaveFiles/rep.yml
	version: 1.1
	
on join:
	if {positiverep::%player's uuid%} is not set:
		set {positiverep::%player's uuid%} to 0
	if {negativerep::%player's uuid%} is not set:
		set {negativerep::%player's uuid%} to 0
	if {neutralrep::%player's uuid%} is not set:
		set {neutralrep::%player's uuid%} to 0
	
command /rep [<text>] [<offlineplayer>] [<text>]:
	permission: rep.use
	permission message: &cNo Permission!
	trigger:
		if arg-1 is not set:
			send "{@prefix} &c/rep help"
		if arg-1 is "help":
			send "&8&m-------------------------------------"
			send "&6/rep give [player] [positive(+);negative(-);neutral] &r- Give a player rep."
			send "&6/rep check [optional: player] &r- Check the rep of yourself or another player."
			send "&8&m-------------------------------------"
		if arg-1 is "give":
			if arg-2 is not set:
				send "{@prefix} &cSpecify the player!"
				stop
			if arg-2 hasn't played before:
				send "{@prefix} &cUnknown player!"
				stop
			if arg-2 is player:
				send "{@prefix} &cYou can't rep yourself!"
				stop
			if arg-3 is not set:
				send "{@prefix} &cSpecify the type of rep! [positive (+), negative(-), neutral]"
				stop
			if arg-3 is not "+" or "-" or "neutral" or "positive" or "negative":
				send "{@prefix} &cInvalid rep type! [positive, negative, neutral]"
				stop
			if arg-3 is "+" or "-" or "neutral" or "positive" or "negative":
				if arg-3 is "positive" or "+":
					set {_rep} to "&apositive"
				if arg-3 is "negative" or "-":
					set {_rep} to "&cnegative"
				if arg-3 is "neutral":
					set {_rep} to "&7neutral"
				set {_rep2} to convert string arg-3 to lowercase
				if yaml list "%player's uuid%" from file "{@file}" doesn't exist:
					add 1 to {%{_rep2}%rep::%uuid of arg-2%}
					add "%uuid of arg-2%" to yaml list "%player's uuid%" from file "{@file}"
					send "{@prefix} &rYou have given &6%arg-2% %{_rep}% &rrep!"
					stop
				if yaml list "%player's uuid%" from file "{@file}" doesn't contain "%uuid of arg-2%":
					add 1 to {%{_rep2}%rep::%uuid of arg-2%}
					add "%uuid of arg-2%" to yaml list "%player's uuid%" from file "{@file}"
					send "{@prefix} &rYou have given &6%arg-2% %{_rep}% &rrep!"
					stop
				else:
					send "{@prefix} &cYou have already given rep to this player!"
					stop
		if arg-1 is "check":
			if arg-2 is not set:
				send "&8&m-------------------------------------"
				send "&6%player%'s Rep:"
				send "&aPOSITIVE REP&r: %{positiverep::%player's uuid%}%"
				send "&cNEGATIVE REP&r: %{negativerep::%player's uuid%}%"
				send "&7NEUTRAL REP&r: %{neutralrep::%player's uuid%}%"
				send "&8&m-------------------------------------"
			if arg-2 is set:
				if arg-2 hasn't played before:
					send "{@prefix} &cUnknown player!"
					stop
				send "&8&m-------------------------------------"
				send "&6%arg-2%'s Rep:"
				send "&aPOSITIVE REP&r: %{positiverep::%arg-2's uuid%}%"
				send "&cNEGATIVE REP&r: %{negativerep::%arg-2's uuid%}%"
				send "&7NEUTRAL REP&r: %{neutralrep::%arg-2's uuid%}%"
				send "&8&m-------------------------------------"
				stop
		
command /repset [<offlineplayer>] [<text>] [<integer>]:
	usage: &c/repset <player> <Rep type> <amount>
	permission: rep.admin
	permission message: {@prefix} &cNot enough permission!
	trigger:
		if arg-1 is not set:
			message "{@prefix} &7Please specify a Player!"
			stop
		if arg-2 is not "positive" or "negative" or "neutral" or "+" or "-":
			message "{@prefix} &7Please specify a rep!"
		else:
			if arg-3 is not set:
				set {%arg 2%rep::%uuid of arg 1%} to 0
				message "{@prefix} &7Successfully set &6%arg 1%'s &6%arg 2%&7 rep to 0."
				stop
			if arg-2 is "positive" or "+":
				set {positiverep::%uuid of arg 1%} to arg-3
				message "{@prefix} &7Successfully set &6%arg 1%'s &a%arg 2%&7 rep to %arg 3%."
			if arg-2 is "negative" or "-":
				set {negativerep::%uuid of arg 1%} to arg-3
				message "{@prefix} &7Successfully set &6%arg 1%'s &c%arg 2%&7 rep to %arg 3%."
			if arg-2 is "neutral":
				set {neutralrep::%uuid of arg 1%} to arg-3
				message "{@prefix} &7Successfully set &6%arg 1%'s &8%arg 2% &7rep to %arg 3%."