Although just following the link didn't give me the exact info (i had to use
the VLOOKUP Worksheet) I did get the information.
Using in cell D8 the formula
=IF(C8="","",VLOOKUP(C8,Products!$A$2:$C$37,2,FALSE))
I had to add in the co-ordinates $A$2:$C$37 of the table rather than just
writing in (as the website says)
=IF(C8="","",VLOOKUP(C8,Products!,2,FALSE)) this gave the result of #N/A
But I got there eventually. This will be a big help