You're right, export limitations.

8v269012 won’t be able to change the item type, and so he has to re-add the items with the correct type (non-inventory).

The steps shared by HoneyLynn and Fritz are the best way to enter them in batch. However, I just want to re-iterate what Alessandra said that we’re unable to enter items with the same name. Therefore, he has to rename and inactivate the existing inventory items in batch first before re-adding them.

You can always jump back in when you have more questions.

Have a nice day!