If you make changes to your files, they’ll automatically sync to Google Drive when you’re back online. It’s important to select all the files that you might need to open. Only the files specified here can be viewed and modified when the internet connection is lost. It is a function that allows you to select the document you want to access offline in advance from the setting menu of Google Drive. In that case, you can download the extension “Google Offline Documents” that can only be used on the Chrome browser. It’s a problem for people who use the subway. You might think that you need an internet connection to access or make changes to files on Google Drive. 3) You can use “Documents” even when you are offline