If your WordPress projects is managed in translate.wordpress.org, we push directly your translations there, without the need of any intervention on your part.
If you maintain your project yourself, there are several options for you to embed your translations.
If you prefer to embed your translations in your project directly, we can provide you a .zip of all translations files; or you can use a simple tx-cli.
But we do highly recommend our WP-Translations Language Pack feature.