No need for a macro, you can do this with VLOOKUP functions. For instance, to get Inventory Value, formula would be
=VLOOKUP($E$4, '[Master file.xslx]Sheet1'!$A:$J, 6, 0)
The important part is the 3rd argument (e.g. 6) which says which column you want to return from your data. So, you'll use a...