# tWriteAvroFields

Transforms the incoming data into Avro files.

tWriteAvroFields generates Avro binaries to be used by the components requiring serialized data as input such as tKafkaOutput.

### In this section

* [tWriteAvroFields properties for Apache Spark Streaming (deprecated)](https://help.qlik.com/talend/en-US/components/8.0/processing/twriteavrofields?id=4087)
* [tWriteAvroFields properties for Apache Spark Structured Streaming](https://help.qlik.com/talend/en-US/components/8.0/processing/twriteavrofields-properties-for-apache-spark-structured-streaming)