To view or use the files inside "PGEXBV.rar," you must use specialized extraction software. Windows does not natively open RAR files in the same way it handles ZIP files, so a third-party tool is required. RAR - Википедия
: Can include "recovery records" to help repair the file if it becomes corrupted. PGEXBV rar
: Significantly reduces the footprint of large files. To view or use the files inside "PGEXBV