Nest CHOOSECOLS inside UNIQUE to extract non-adjacent columns, and use INDIRECT for interactive header dropdowns.
Row precision vs. Aggregation errors: MAP is the best way to use "greedy" functions like AND or OR in a single, dynamic ...
See how try and otherwise protect custom column math from type errors in Power Query, saving time and keeping your refresh ...
Discover NIFO, a unique inventory valuation method based on replacement cost instead of original cost, its working mechanism, ...