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title: DataFormat (dw::extension::DataFormat)
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# DataFormat (dw::extension::DataFormat)

> For the full documentation index, see: https://docs.mulesoft.com/llms.txt

This module contains what is required for registering a new data format for the DataWeave language.

For an example, see
[Custom Data Formats Example](https://github.com/mulesoft-labs/data-weave-custom-data-format).

## Types

- [DataFormat Types](https://docs.mulesoft.com/dataweave/2.3/dw-dataformat-types)

## Annotations

- [DataFormat Annotations](https://docs.mulesoft.com/dataweave/2.3/dw-dataformat-annotations)