# Tool Objective The **Jakarto Data Downloader** is a tool that allows users to **select and download 3D point clouds** covering a specific region. By downloading these point clouds, you obtain a **local copy** of the data, facilitating its use in other GIS software or [specialized applications](/guide-data-downloader/en/file-download/integrating-downloaded-files-into-an-external-tool.md), independently of Jakarto's online services. The files are provided in **COPC (Cloud Optimized Point Cloud)** format, an optimized extension of the **LAZ** format. This **compressed and structured** format allows for faster data access, especially for web dissemination use cases (such as [Jakartowns](https://docs.jakarto.com/guide-jakartowns/fr/jakartowns/raccourcis-clavier/general)), while remaining **compatible** with software that supports the LAZ format. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.jakarto.com/guide-data-downloader/en/introduction/tool-objective.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.