Creating 3.x in another folder and moving it back to root

By simply using this method?

[url=“CS-Cart Documentation — CS-Cart 4.15.x documentation”]CS-Cart Documentation — CS-Cart 4.15.x documentation

I have all the images, customers and order data exported from 2.2.x and hoping to do a clean install in a subdirectory and transferring that new site to the root which will wipe out the current 2.2.x store.

Is it that easy? I just want to make sure I'm doing this right.