This document provides tutorials for customizing the Data Load utility for various tasks related to loading data into WebSphere Commerce applications. The first tutorial demonstrates how to customize the utility to encrypt user password data when loading it from a CSV file into the database. It involves creating a CSV file with password data, configuring the utility, and extending the generic table loader to encrypt passwords. The second tutorial shows how to customize the utility to load data from an XML input file by creating an XML file, custom data reader, and configuring the utility. The third tutorial demonstrates loading data into custom tables by configuring the utility, custom tables, and configuration files.