How to convert a matrix to a single column using Excel

Question

I have the following matrix in Excel:

3 Columns: A, B, C

Row 1: a b c

Row 2: d e f

Answer 1

This was already covered in Item 2 from the very general

Excel: Formulas for converting data among column / row / matrix :

The top cell of your target range (say, $H$1) should contain

=INDEX($A$1:$C$3,INT((ROW()-ROW($H$1))/3)+1,MOD(ROW()-ROW($H$1),3)+1)

where $A$1:$C$3 cotains your source data. Copy the formula downwards as needed.

You could also use

=OFFSET($A$1,INT((ROW()-ROW($H$1))/3),MOD(ROW()-ROW($H$1),3))

as metioned in the referred article.