Serial numbers in Inbound delivery for Handling units

Hello Experts,

I have the following scenario:

Purchase order + Inbound delivery + GR

Inbound delivery is used because I need to create handling units, the materials included in these handling units are serialized and I am getting from the vendor an excel document with Handling unit number and the serial numbers included in each handling unit.

So I would like to use this document to do the packing process in my inbound delivery instead of manually typing the serial numbers.

What would be the best option to do this?

I also need to do the same for MIGO when no HU are needed.

Any Ideas??

Thanks a lot in advance for your comments.