The M language is a functional, case sensitive language similar to F#. Power Query M is used to filter, combine, and mash-up data from one or more supported data sources.

Jan 19, 2026 · The Power Query M language specification formally defines how the language works including its syntax, structure and evaluation rules. It explains how M code is written, interpreted and …

Power Query M, a language commonly referred to as “M,” is a powerful data transformation and data preparation language designed specifically for Microsoft’s Power Query, an ETL (Extract, Transform, …

M code is the language behind the scenes of power query. When you create a data transformation in the power query editor UI, Excel is writing the corresponding M code for the query.

The Power Query M formula language is optimized for building highly flexible data mashup queries. It's a functional, case sensitive language similar to F#. Power Query Formula Language is used in a …

Sep 25, 2023 · This article introduces M language concepts and examples of using M to manipulate data in Excel.

Jul 10, 2017 · Learn basics of Power Query scripting language called M using some examples and learn to understand an existing M code in the advanced editor

Apr 24, 2024 · The Power Query M language features nearly 1000 unique functions, which can be overwhelming for beginners. In this article, we highlight the most important functions to master in M.

Oct 21, 2025 · M is the formal name for the Power Query Formula Language. It’s the scripting language that works behind the scenes inside the Power Query Editor in both Power BI and Excel.

We’re going to barrel down the tracks, take some dives, loops and perhaps even a wiz around a few tight curves as we take a deep, systematic dive into M, the language at the heart of Power Query.