How can I access files in android/data?

I'd like to paste some save files from a game from one of my other devices into the appropriate folder on my 12th gen fire 7 tablet, but I can't access the android/data folder no matter what I do. I can look at the files there from the file browser, but the second I try to copy anything into that folder, it disappears. I tried installing Cx file explorer but the tablet won't let it request permission to that folder. I even tried plugging the tablet into my computer, but that folder is inaccessible. I just want to copy a folder into my android/data folder. Any ideas?