Acer Chromebook Spin 514 User Manual page 29

5. Make your desired changes. The next time you are online and have
Google Drive open, your local changes will upload to Google Drive.
Note
If you make changes to a Google document while offline and someone else
makes changes to the document as well (for example, if the document is
shared with someone else), the next time you are online and have Google
Drive open, your changes will merge with the other person's changes.
You can't open and access every type of file you have saved in
Google Drive when there is no internet connection. To enable offline
access to file types other than Google documents when offline,
Enable offline access to Google Drive files on page
Chrome OS tips and tricks - 29
see
20.