How to transfer data/files with Google Drive
Download and install
Download the Mac app by going to the Backup and Sync download page (https://www.google.com/drive/download)> read and agree to the Terms of Service. Once the app has downloaded, open installbackupandsync.dmg > move “Backup and Sync” to your Applications folder > open Backup and Sync > sign in using your Google Account username and password > select your sync settings > click Next.
Select what to sync to Google Drive
You can choose to sync all or some of your computer files to Google Drive. On your computer, click Backup and Sync (cloud icon with an up arrow) > click More (three-dot icon) > Preferences > on the right, select the folders you want to sync (if a folder is not on the list, click Choose folder) > click OK.