Chrome - Bookmarks - how to backup and import

1. Click on the Tools icon on the upper right.  (3 dots).
2. Select Bookmarks - Book Mark Manager. (Ctl-Shift-O)
3. Select 3 dots in Upper Right- Select Export Bookmarks (Or Import)
4. Save the file to your local drive 'AND' to a network drive or Google Drive so you have 2 copies.

Please note that if you have Google Sync enabled, that will keep all of your bookmarks synchronized so they will be on any device you log into with that google user id.