This document discusses file management functions in C++. It introduces file streams/file handling using the <fstream> header file. The header file supports ofstream for writing, ifstream for reading, and fstream for both. Common file operations include creating/opening a file using open(), reading data with read(), writing with write(), and closing a file with close(). The document provides examples of opening files for writing, reading, appending, and truncating and using extraction and insertion operators to read from and write to files.