Automatic File Import & Schema Mapping Tool (Power Query Template)

Seed: Example CSVs with header rows, mapping sheet; PQ steps: promote headers, detect types, map columns via mapping table

Implementation Guide

Power Query template that ingests disparate CSV formats, normalizes headers via a mapping sheet, enforces data types, and appends to a canonical table. Ideal for admin teams receiving ad-hoc vendor files or HR exports. Includes error rows and schema-change alerts for ETL governance.

💡 Expert Q&A Insights

Q: \

How to handle new columns in source files?\" \"

Q: Use a schema-change sheet that maps or ignores new columns and triggers a notification for mapping updates.\"\n\"

Can PQ preserve source file provenance?\" \"

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