Yesterday Alan Murray posted a tutorial here, and asked the question ‘how would you do it’.

I didn’t use PowerQuery. I would have, if it gave me an advantage over the (robust) techniques Microsoft have already given us.

Breaking the problem down, I see two steps.

  • Normalise the source data
  • Run a Crosstab and Summary to get the required report

To ‘normalise’ means to put the data into a list such as this.

From that we can do anything. This question requires a ‘crosstab’ type of report. And a summary.

So, Alan’s question breaks down to

  • How would you normalise data with Excel?
  • How would you do a crosstab and a summary in Excel?

I’ll cover this in an explainer shortly. It’s simple when you reduce the problem to its constituent parts.


Hiran de Silva

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