Creating a Data Driven Framework in Selenium enhances test automation efficiency by allowing QA engineers to test various scenarios using different data sets, which are stored separately from the test code in external files like MS Excel or CSV. This separation simplifies maintenance and enables the framework to accommodate new functionalities with minimal code changes. The Selenium WebDriver, in conjunction with the TestNG framework and Apache POI API, facilitates data driven and cross browser testing by enabling operations on Excel files. Apache POI, an open-source library, supports CRUD operations on Microsoft documents, making it pivotal for managing test data in data driven testing. In this approach, the test logic is kept independent of the test data, ensuring that changes in business rules do not necessitate rewriting the tests, thereby streamlining the regression testing process. This methodology also supports the use of TestNG’s DataProvider for managing large datasets and running tests across various browser and OS combinations, demonstrating the framework’s scalability and flexibility.