Excel data validation with suggestions/autocomplete

Question

Apologies for my low level of Excel understanding, maybe what I am looking to do is not possible.

I have a list of 120 entries that I want to use as data validatio

Answer 1

None of the above mentioned solution worked. The one that seemed to work only provide the functionality for just one cell

Recently I had to enter a lot of names and without suggestions, it was a huge pain. I was fortunate enough to have this excel autocomplete add-in to enable the autocompletion. The down side is that you need to enable macro (but you can always turn it off later)