QGIS Desktop is one of the most powerfull Open Software GIS software used in a daily basis. One of its key feature is the data processing module that allows users to process their data from various format and offers a rich set of functionalities, which guarantee a high degree of flexibility. This presentation will focus on this part of QGIS and will describe different way to process your data. It will show how to industrialize your process to be more productive in your daily use of QGIS. We will then describe the next key features of the module in QGIS 3.