How do I save and then load a string variable?

Hi, So I'm currently a bit confused with DataStores, and I'm trying to specifically get them to save a string variable (called 'Value') that is located in game.Workspace. I have so far created a script that should save the player's data on exit (which I will share below) however, after looking through the ROBLOX Wikia and many other places I haven't found anything that will load data.

Here is the code I created to save player data

local DataStore = game:GetService("DataStoreService"):GetDataStore("Cash")

game.Players.PlayerRemoving:connect(function(player)
	local key = "user_" .. player.userId
	DataStore:UpdateAsync(key, function(oldValue)
		local newValue = oldValue or 0
		newValue = newValue + game.Workspace.Value.Value
		return newValue
	end)
end)

Thanks for any help you can give me.

While data persistence is depresiated, I recomend it for a data save solution for people who are new to scripting.

To save data:

game.Players.PLAYER:SaveString("DATATITLE", "DATA CONTENTS")

To load data:

local DATA = game.Players.PLAYER:LoadString("DATATITLE"))

However, if you would like to remain with data stores, I recormend this guide by @ScriptGuider

https://scriptinghelpers.org/questions/25774/simple-datastore-introduction

I hope this helps!