Vlookup and concatenate results - possible with formulas?

The problem is that at work we only have old Excels for Mac, that doesn't allows these macros. (macros windows appear empty).
There is a technical reason to keep this old Office, according to the IT crew.

Just in case, I haven't thought about it, we have an updated LibreOffice, that accepts and runs macros.
I attach 2 images. One is what I see with Excel Mac, and 2nd with updated LibreOffice.

Captura de pantalla 2017-04-18 a las 16.51.50.png

Captura de pantalla 2017-04-18 a las 16.38.24.png