The traditional ETL process used rule-based approaches, which involved manual configurations and had limitations in handling data format changes.Large language models (LLMs) are revolutionizing the ETL process by providing contextual intelligence, adaptability, and automation.LLMs enable schema-less extraction, natural language queries for data integration, adaptive data transformation, and multi-modal support.Practical examples, such as LlamaExtract, demonstrate how LLM-powered ETL tools simplify structured data extraction from unstructured sources.