Learn how Excel functions can act as data using LAMBDA, LET, and BYROW, so you reuse logic and cut formula edits.
Learn advanced filtering in Excel with a criteria area, OR and AND logic, and copy results to isolate the right rows fast.
It's marginally more efficient: While the difference is negligible, the double-unary operator can be more efficient in ...
To clean up the messy data, it needs to be loaded into the Power Query Editor.