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.

Answer 2

Say we have:

In E1 enter:

=INDEX($A$1:$C$3,ROUNDUP(ROW()/3,0),IF(MOD(ROW(),3)=0,3,MOD(ROW(),3)))

and copy down to get:

Using similar formulas you can map any two dimensional table into a single row or single column. It is equally easy to map a single column or row into a table.

Answer 3

The answers above are quite good, but IMHO, the solution provided by Chip Pearson here (http://www.cpearson.com/excel/TableToColumn.aspx), is superior is most respects since it immediately/automatically:

1) Determines the Row/Col delim values on its own, and immediately works for rectangular, e.g. above one must explicitly enter 3 for num Cols and 3 for num Rows, and must also figure out which is which. Whereas Pearson's solution does this automatically (eg. rmf's comment/concern above).

2) Pearson provides both variants for Col-ordered and also Row-ordered.