13 Comments
 

Xlookup > Index match for simple searches, I.e. searing just one column or one row. Index match > xlookup when need to search both column and row.

The xlookup syntax is much simpler and cleaner and can be done in less time than index match. I only use index match for complicated tasks

 

Do not use Xlookup. Will fuck up your excels and make the file size cartoonishly large. Also can cause issues with people running older versions of excel. Index match does everything xlookup does and is arguably (definitely but i’m lazy) more dynamic.

 

Echoing others, index match > v/h lookup > xlookup in terms of impact of formulas on file size and calculation speeds.

Another cool “party trick” which is very size-efficient is using matrix multiplication which can take logicals in consideration as well using nested sum() functions eg:


Summing cashflows between dates:
Sum( sum(CFS) * sum(datearray >= date) * sum(datearray= date) )

 

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