Use third-party cloud apps in the Files app
You can add your third-party cloud services — like Box, Dropbox, OneDrive, Adobe Creative Cloud, Google Drive, and more — to the Files app so that you can access all of your files on all of your devices.
How to add third-party cloud storage apps to the Files app
Download and set up the third-party cloud app, such as Dropbox, OneDrive, or Google Drive.
Open the Files app.
Tap the Browse tab.
Tap the, then tap Edit.
Turn on the third-party apps that you want to use in the Files app.
If you don't see one of your third-party cloud services in the Files app, check with your cloud provider.
Move files from a third-party cloud app in the Files app
In the Files app, find the third-party file that you want to move.
Touch and hold on the file until a menu appears, then tap Move.
Choose the folder that you want to move your file to.