Handling large files in a Spring Boot application is a common challenge faced by developers, especially when working with file uploads, data processing, and storage management. Processing large files efficiently without overwhelming the server or running into memory issues requires careful planning and the right approach. In this article, we will explore the most effective methods to process large files in Spring Boot, covering various techniques and providing detailed code examples, demos, and results. By understanding the different strategies available, you can choose the best solution for your specific use case, ensuring that your application remains performant, scalable, and reliable. This guide will not only teach you how to handle large files but will also explain the reasons behind each approach, helping you make informed decisions.