Android: How Can i Create Files in another Application's Package?

[Anmol hira]

I am developing a custom Watchfaces App in Which i have to Copy/Create Watchface .bin files in Android/data/com.xiomi.hm.health/files/watch_skin_file/59/ into these directory without this my custom watchface app will not be able to apply custom watchfaces. I am new to android file storage development and does not know much about it. but i know that android have made some changes in storage in android 11. Can anyone tell me how can i do this in Android 10 as well as in Android 11. Please guide me exact ways and write sample code. Thanks