In the context of data processing, a C program is not usually considered data, and the term file, or data file, is typically used to refer only to external files that contain the data used in a C program.

Data File

A file that contains data, often structured in a specific format, that can be used or processed by a computer program.

C Program

A program written in the C programming language, which is a general-purpose, procedural computer programming language.

External Files

Refer to files that are created, stored, and accessed outside of the executable program's memory space, often used for data storage, configuration, or logging.