This mod adds a new command to your debug console for the purpose of exporting your current sticker collection to a json file.
Open your debug console as described here
Input command dump_stickers
dump_stickers
dump_stickers 2
Navigate to your game's user:// directory to find a folder named sticker_collection, typically located in one of the following locations:
user://
sticker_collection
C:\Users\<username>\AppData\Roaming\CassetteBeasts\
C:\Users\<username>\AppData\Local\Packages\RawFury.CassetteBeasts_9s0pnehqffj7t\SystemAppData\wgs\
~/.local/share/CassetteBeasts/
There should be a new .json file there named stickers.json containing the exported data.
stickers.json