The article argues that SQLite database files can be used as an application file format, offering advantages such as simplified application development, single-file documents, and high-level query language. This approach can be more efficient and scalable than traditional file formats. The article discusses the benefits and trade-offs of using SQLite as an application file format, including its ability to store structured and unstructured data. It also highlights the importance of considering the specific needs and constraints of an application when choosing a file format.