# Metadata injection support

You can use the metadata injection supported fields with [ETL metadata injection](/pdia-data-integration/10.2-data-integration/pdi-transformation-steps-reference-overview/etl-metadata-injection.md) step to pass metadata to your transformation at runtime. The following **Option** and **Value** fields of the CSV File Input step support metadata injection:

* **Options**: Filename, Delimiter, Enclosure, NIO Buffer Size, Lazy Conversion, Header Row Present?, Add Filename to Result, The Row Number Field Name, Running in Parallel?, and File Encoding.
* **Values**: Name, Length, Decimal, Type, Precision, Group, Format, Currency, and Trim Type.


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