@superlik database tools module useful to import / export database configurations and adds some other useful features as featured here How to use Database Tools Module
Some restaurant owners like you shares their configurations to help other users for setting up their systems and they mostly prefer database tools as it allows merging configurations easily. Of course it intended to work without changing your current configuration but nobody can guarantee that will just work without issues as everybody’s setup is different. So create backups in advance and make such imports on training mode to ensure it works fine with your configuration.
Alternatively you can follow tutorials to learn how it works and implement your own solution perfectly customized for your needs. This is always the best choice.