Use APKPure App
Get Built In File Manager old version APK for Android
Android im Datei-Manager Built
Android Built-In File Manager
Compatible with the Android 6.0 Marshmallow or above.
KEY FEATURES:
Copy, Delete, and Move Files and Folders.
Image Preview and Photo Viewer.
Audio and Video Player.
HOW TO USE:
tap the menu button and select "Show internal storage” to see your device's internal storage.