Google File Stream is a service that stores your files online and access/edit them offline.
There is unlimited storage available on Google Drive.
It automatically syncs the files to the Internet so you do not have to upload and download anything.
Download the program using the buttons above.
Sign in with your school email and password.
Enable this chrome extension in order to use Google Apps offline.
To enable the offline setting in Google Docs:
Go to Google Docs Menu
Go to Settings
Enable the Offline setting
Select the file.
Right click and select the Offline option.