Cleaning Excel Data With Power Query Straight to the Point. Efficient Data Cleaning Techniques in Excel Using Power Query Czerwionka-Leszczyny

This book provides a step-by-step guide to using Power Query in Excel for efficient data cleaning and transformation. Starting with an introduction to its capabilities, it explains how to import data, handle missing values, and parse text fields with ease.Advanced techniques such as merging datasets, appending data, and performing joins are explored in detail. The book also covers grouping data, creating conditional and custom columns, and reshaping data through unpivoting for analysis. Each concept is illustrated with practical examples for clarity.By the end of the book, readers will be equipped with the skills to automate repetitive tasks and streamline workflows. Whether dealing with messy data or preparing datasets for analysis, this guide ensures you can confidently tackle any Excel data transformation challenge. Spis treści: 1. Introduction2. First, Some Background for Power Query3. Getting Data into Power Query4. Fill Up and Fill Down5. Parsing Text6. Sorting in Power Query7. Merging Data: Joining and Appending8. Grouping Data9. Refreshing and Updating Data10. Adding Columns11. Unpivoting Data12. Conclusion