I've found the following example that works in Excel for my use case, which is to convert a range of text values to numbers and sum the returned array.
=SUM(INDEX(Values,N(IF(1,MATCH($B$4:$B$6,Map,0)))))
In the above formula, Values is a range [4,3,2,1,0] corresponding to a word Map [Excellent,Good, Fair, Poor, ].
If my range B4:B6 is [Fair,,Fair] I would expect to have a value of 4 returned.
This solution works in Excel, but I cannot seem to get this same function to work in Google Sheets by adding arrayformula around the working excel formula.
Any help here would be greatly appreciated.