Hi,
It's possible yes.
It's not a 1:1 conversion. You'll have to configure your HikaShop, your modules, your menu items, your payment methods your shipping methods in HikaShop...
Also, if you have products with options/characteristics these won't be copied over so you would have to redo them in HikaShop.
The migration tool will import orders, addresses, products and categories. That's basically the main things. But then, not all the data might be imported for products (it depends what you use) so you might have to go over them one by one to reconfigure some stuff.
Sitll, the migration tool will help a lot.