Hello,
- request cs-cart 4.7.2 from cs-cart support team
- perform data transfer with the official module
Add-ons :: Import / Export :: Store Import - upgrade via upgrade center up to 4.17.2
How To: Upgrade CS-Cart via the Upgrade Center — CS-Cart 4.18.x documentation
- go to manage orders/manage users page and add &items_per_page=5000 to the url
- select all items and delete them page by page
Since orders and users use several tables in the database, there is no easy way to delete them with sql query