Settings include all options necessary to import or export data of your site.
Export options allow you to download backup file with all WordPress content and theme settings. It’s recommended to download export backup file with each theme update, to prevent problems when old backup file from early theme versions is going to be imported to newly updated theme.
With import options you can upload file created from theme Export options.
Important!: Import of data will delete all entries in database for selected option.
Check out this page to read more about Demo Content importing.