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Excel Magic Trick #117: Reverse 2-Way Lookup Part 1

Really Hard formula!!! See the functions, IF, INDEX, MATCH, SMALL, ROW, ROWS, COLUMN and COLUMNS all in one array formula.

See how to do a Reverse 2-Way Lookup with a complex Array formula.

See how to populate a list of names for patients with schedule book entries using this complex Array formula.

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