A Beginner’s Guide to Mastering the Art of Data Metamorphosis to Get Just the Data Structure Needed to Create Insightful Data Analysis Solutions

Color Edition THE TRANSFORMATIVE MAGIC of Power Query M Code in Excel and Power BI

by Mike “excelisfun” Girvin

About The Book

This book is about Power Query and M Code.Power Query and the functional language M Code (M) are the heart and soul of Microsoft’ s power data analysis tools: Excel, Power BI Desktop and Dataflows. The beautiful data driven and insightful PivotTables, Power BI solutions and Dashboards that you create usually require that you use Power Query and M Code to get, transform and load the data before you create the final reports and visuals. For many data analysis jobs, using the SQL language to perform ETL (extract, transform and load) is the preferred tool. Maybe even R or Python. But if you use Power BI or Excel, you better also be masterful with M Code and Power Query. Together, they give you the power to connect to multiple data sources, structuring your data with ease, and load to the worksheet, the data model in Excel or Power BI or Dataflow’ s Data Hub.As an accountant, professor, data analyst, author, Excel MVP and YouTuber for about 20 years, my specialty is in telling stories with videos and books to make complicated things less complicated and to inspire you to have fun with the power you can gain over data.

Holy Macro! Books

Books on Microsoft Excel, Power Query, Power BI, ChatGPT by Excel MVPs.

Holy Macro! Books is a niche publishing company dedicated to empowering Excel users worldwide with expert-level guides on Microsoft Excel, Power Query, Power BI, and more. Founded by Excel legend Bill Jelen, the company features books authored by Microsoft MVPs, former MVPs, and top industry experts who know their way around formulas, pivot tables, and data transformations. Whether you're a beginner or a power user, Holy Macro! delivers practical, straight-to-the-point content that turns spreadsheet struggles into spreadsheet superpowers.

More Books by Holy Macro! Books

Train Your Own GPT

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Train Your GPT is a hands-on, no-code guide to creating AI assistants that actually work the way you do. Whether you're a content creator, consultant, or spreadsheet nerd, you'll learn how to train ChatGPT to follow your style, use your files, and save you serious time — all without needing to know a single line of code.

MrExcel 2025 - Full Color Edition

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The Transformative Magic of M Code in Power Query and Power BI

A beginners guide to mastering the art of Data Metamorphosis to Get Just the Data Structure Needed to Create Insightful Data Analysis Solutions

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Straight to the Point

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Unlock the Power of TypeScript to Automate Excel in the Modern Era

Visual Basic for Applications isn’t the only game in town anymore. With Programming Excel with Office Scripts: Straight to the Point, Eduardo N. Sanchez cuts through the noise and gives you a fast-paced, example-packed guide to automating Excel using Office Scripts and TypeScript.

Whether you're new to scripting or transitioning from VBA, this book shows you how to manipulate ranges, build pivot tables, generate charts, insert shapes, and even trigger scripts from Power Automate—all through clear, concise TypeScript examples.

You'll explore:

The essentials of TypeScript for Excel scripting

Advanced range, table, chart, and shape manipulation

Integration with Power Automate to build hands-free workflows

Real-world scripts, complete with visuals and step-by-step guidance

Perfect for Excel pros, analysts, and developers looking to modernize their automation toolkit, this book delivers exactly what the title promises: straight to the point.

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