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Binary Files

Last Updated: December 6, 2025

7 min read

Binary files are a powerful tool in a programmer's arsenal, allowing for efficient storage and retrieval of data in a format that is closer to how it is represented in memory. Unlike text files, binary files store data in a way that is optimized for performance and size.

This chapter dives deep into the nuances of working with binary files in C++, building on your existing knowledge of file I/O.

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