Harnessing the Power of LangChain for NLP: A Software Engineer’s Guide Document Loaders: Your Data Access Point One of the first steps in any NLP project is acquiring and loading data. LangChain simplifies this process with its Document Loaders. These loaders enable you to effortlessly access various types of textual data, from local files to remote web resources. Whether you’re working with articles, books, or web pages, Document Loaders provide a unified interface for data retrieval.