Power Query M Reference

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#, which can be used with Power BI Desktop, Power Query in Excel, and Get & Transform in Excel 2016.

• Power Query M language specification

• Power Query M function reference

• Quick tour

• Expressions, values, and let expression

• Comments

• Evaluation model

• Operators

• Type conversion

• Metadata

• Errors