Neo4j has introduced a new tool called Data Importer to help users easily import their flat file data into its graph database without writing code. The tool provides a web interface where users can input their flat file data, model nodes and relationships visually, and map the files to their model. In the latest release, Neo4j added a "Preview" button that allows users to validate their data model before importing it, saving time and increasing productivity. However, there are some limitations to the preview feature, such as only showing up to 300 relationships in total and not previewing mapped properties or isolated nodes. The tool also has some styling changes and minor bug fixes to make it tidier and more pleasant. The latest version of Neo4j Data Importer is available for free on the Neo4j AuraDB console, and users can provide feedback through the community.