… that I can import it into another website builder company?
(Emphasis mine)
If you mean importing into a WordPress website with another website hosting company (ie you want to move your WordPress site from one host to another), then there are several WordPress plugins that make this process very simple, such as:
All-in-One WP Migration: https://wordpress.org/plugins/all-in-one-wp-migration/
WPvivid Backup & Migration: https://wordpress.org/plugins/wpvivid-backuprestore/
More options: https://wordpress.org/plugins/search/migration/
But if you meant importing to another website builder (not WordPress), then much will depend on the new software/platform you’re migrating to. You can easily export your WordPress posts/pages from the dashboard (TOOLS => EXPORT) into an XML file without any plugin. You can also get a backup of the SQL database using the above plugins. But what you do with these exports depends entirely on the new website builder software you’re migrating to.