The PRG file extension is a versatile format primarily used to store program source code or executable scripts across various computing platforms. Historically, it is most closely associated with the xBase family of database management systems, such as dBase, FoxPro, and Clipper. In these environments, a PRG file contains procedural code, logic, and commands used to manipulate databases, generate complex reports, and manage user interfaces. Beyond database applications, the PRG extension was the standard format for executable programs on 8-bit home computers like the Commodore 64, where it contained binary data intended to be loaded directly into specific memory addresses. In modern contexts, PRG files are still utilized in specialized hardware, such as Akai MPC samplers for storing sequence data, and in legacy enterprise software. Because the xBase version of the file is typically stored in plain text, it can be viewed and edited using any standard text editor, although developers usually prefer integrated development environments (IDEs) that offer syntax highlighting and debugging capabilities.