Can you save a table in DataStoreService?

When saving a table into a DataStore, it does not change the way of saving it, meaning that you should write the same things when you save any other value(although, if the table contains an instance, the script will not save the table)

I'll give you a little example of how to use it.

-- this script inserts the name of a table(string) which it's saved in a datastore with the game id when the player leaves.

local MyStore = game:GetService('DataStoreService'):GetDataStore('MyDataStore')
local tab = {}

local Plrs = game:GetService('Players')

Plrs.PlayerAdded:Connect(function(plr)
 local data
 local s, e = pcall(function()
  data = MyStore:GetAsync(game.GameId)
 end)
 if s then
  if data ~= nil then
    tab = data
    table.insert(tab, plr.Name)
  else
    table.insert(tab, plr.Name)
  end
 else
  warn(e)
 end
 print(tab)
end)

Plrs.PlayerRemoving:Connect(function()
 local s, e = pcall(function()
  MyStore:SetAsync(game.GameId, tab)
 end)
 if not s then 
  warn(e)
 end
end)