What is File Layout?

File layout refers to the structure and organization of data within a file. It defines how different pieces of information are arranged and stored, including the data types, their order, and any metadata or headers. Common file layouts include sequential, indexed sequential, and direct access. The specific layout used depends on the type of data, the access patterns, and the performance requirements. Considerations include record length (fixed or variable), use of delimiters, and the inclusion of header or footer information. Understanding file layout is crucial for efficient data storage, retrieval, and processing.