Loads and saves files using PackedByteArray

• Copy the contents of /addons to your projects
• export_presets.cfg for "Web" needs include_filter="*js"
• In your scenes that need it, add a new Html5FileExchange-node

signal file_loaded(buffer: PackedByteArray, file_type: String, file_name: String) func open_load_file_dialog() -> void

func download_file(buffer: PackedByteArray, file_name: String)

@onready var my_html_file_exchange = $Html5FileExchange

func _ready():
	web_file_exchange.file_loaded.connect(func(buffer: PackedByteArray, file_type: String, file_name: String):
		# Here goes ...
		# Logic that checks the file_type or file_name and then converts the buffer
		#
		# See /examples for more
	)

PackedByteArray has several methods to convert to other data types. Examples are PackedByteArray.get_string_from_utf8() or Image.load_png_from_buffer(buffer: PackedByteArray)