# Using the Use Output Stream feature

The Use Output Stream feature allows you to process the data in byte-arrays using a java.io.outputstream() class which writes data using binary stream without data buffering. When processing data with a linear format, for example, when all data is of String format, this feature will help you improve the overall output performance.

![Basic settings view.](https://help.qlik.com/talend/en-US/studio-user-guide/Resources/images/use_output_stream1.png)

The Use Output Stream feature can be found in the Basic settings view of a number of components such as tFileOutputDelimited.

To use this feature, select Use Output Stream check box in the Basic settings view of a component that has this feature. In the Output Stream field that is thus enabled, define your output stream using a command.

Information noteNote: Prior to using the output stream feature, you must open a stream.

For a detailed example of the illustration of this prerequisite and the usage of the Use Output Stream feature, see [Data Integration Job Examples](https://help.qlik.com/talend/en-US/data-integration-job-examples/8.0/tmap-job-example).