I want to save a file in the desired path

[Taifun]

@Micha_Kraus

choose a folder that is writable and readable from the app

Use ASD, i e. the solution provided by @TIMAI2
However if additionally you want to use those files in other spps or you want to be able to see them in a file manager app, then store the files in shared storage, for example /Download or /Documents

Taifun
PS: yes, the guide by @Anke is all you need

Some basics on Android storage system

From an Android point of view there are an → Internal Storage and an → External Storage . 1. Internal Storage The Internal Storage can only be accessed with a rooted device. 1.1 The app package is saved in /data/data/<packageName>/ In order to be able to debug your app, AI2 saves the assets for → Companion on devices with Android ≥ 10 (API ≥ 29): /storage/emulated/0/Android/data/edu.mit.appinventor.aicompanion3/files/assets/ Android < 10 : /storage/emulated/0/Android/data/edu.mit.a…