What are the stream files in C?

We can open file in C with using stream files.which are identified with a pointer to a FILE structure, or as low-level files, which are identified with an integer handle.

We can open stream files with using one of the following functions.

fopen(): Opens the specified file with the specified mode

freopen(): Closes the file specified, then opens a new file as specified

fdopen(): Opens a duplicate stream file for an already open low-lev