Reverse a List using Formulas [Using Excel INDEX() Formula]
Here is a simple yet novel use of formulas. Let us say you have a list of values in range A1:A5 and you want to reverse the list.
In an empty cell write
=INDEX($A$1:$A$5,6-ROWS($A$1:A1)) and copy down.
Boom, you get the reversed list.
Here is how the formula works:
- In the reversed list, first item is last item in the original list (ie 5th item in our case).
- INDEX() formula takes a list, a row number (and optional column number) and returns the value at intersection.
- In this case, $A$1:$A$5 is the list.
- 5 is the size of list.
- ROWS($A$1:A1) gives running numbers from 1 thru 5 when copied in any range of 5 cells. Read more on using ROWS() formula.
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