Maxscript: This demonstrates a simple way to save data to a max file.

Save Data to Max File | .ms

CA = attributes MyData
(
	parameters main
	(
		theNames type:#stringTab tabSizeVariable:true
		nodes type:#nodeTab tabSizeVariable:true
	)
)
 
--// variant #1 > add to rootNode to store with file
custAttributes.add rootNode CA
 
--// variant #2 > add to a new track to store with file
newTrackViewNode "yourCustomName" -- create new track
custAttributes.add (trackViewNodes [#yourCustomName]) CA

-- save data to attributes
if isProperty rootNode "MyData" do
	rootNode.MyData.nodes = objects as array

-- retrieve data
names = (
	if isProperty rootNode "MyData" then
		rootNode.MyData.theNames as array
	else #()
)

nodes = (
	if isProperty rootNode "MyData" then
		rootNode.MyData.nodes as array
	else #()
)