To save a file offline, turn on Available offline.Important: You must be connected to the Internet to turn on offline access.
If you aren’t connected to a Wi-Fi or mobile network, you can still view and edit files, including: Learn about Drive File Stream and Backup and Sync. If you use a Google Account through work or school and have installed Drive File Stream, learn how to save files offline on your computer. Here’s a quick video tutorial from Google: To save multiple files offline, press Shift or Command (Mac)/ Ctrl (Windows) while you click other files. Save Google Docs, Sheets & Slides for offline use Open Google Docs, Sheets, and Slides offline