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Power Query: Automated Data Extraction & Transformation
Get & Transform, merging tables, unpivoting columns, and automated refreshes
Power Query is Excel’s built-in ETL (Extract, Transform, Load) engine, recording data cleaning steps into an automated pipeline that can be refreshed with a single click.
Automating Data Pipelines with Power Query
Extract: Ingest data from CSVs, folders of monthly files, SQL databases, or web URLs.
Transform: Remove blank rows, unpivot cross-tabulated reports into tidy datasets, change data types, split columns.
Load: Push the clean table directly into the Excel worksheet or Data Model.
One-Click Refresh: When next month's data arrives, drop it in the folder and click "Refresh All"—all 20 cleaning steps re-run in 2 seconds!
Unpivoting Columns in Power Query converts messy wide monthly reports into tall tidy data ideal for Pivot Tables.
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Test Yourself With Exercise
What is the primary business benefit of using Power Query (Get & Transform) over manual Excel data cleaning?