CHAPTER 39
Transforming Data with Power Query

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IN THIS CHAPTER

• Performing common transformations
• Creating your own custom columns
• Understanding data types
• Understanding Power Query formulas
• Applying conditional logic

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Data transformation generally entails certain actions that are meant to “clean” your data—actions such as establishing a table structure, removing duplicates, cleaning text, removing blanks, and even adding your own calculations.

In this chapter, you will be introduced to some of the tools and techniques in Power Query that make it easy for you to clean and massage your data.

You can follow along with the examples in this chapter by downloading the LeadList.txt sample file at www.wiley.com/go/excel2019bible. Once you've downloaded the file, you can import the sample file into Power Query (select Data ⇨ Get & Transform Data ⇨ From Text/CSV, browse to the LeadList.txt file, and then click the Edit button).

Performing...