One of the big concerns many users have about cloud-based storage is that they won’t have access to their documents when they’re offline. But that’s not the case with Google Drive. In fact, it’s simple to set up offline access.
You will need to use the Chrome Browser and be logged in under the same Gmail account as the drive to activate this feature. Open your drive and choose settings.

Choose General and then check the box next to Offline that reads, “sync Google Docs, Sheets, Slides & Drawing files to this computer so that you can edit offline. Click Done and you’re done! Simple as that.
~ Cynthia