FileMagic is also optimized for high performance. B0R files can vary in size, and some may contain large amounts of binary or serialized data. Where conventional editors may struggle with memory overload or crash on large files, FileMagic is built to remain fast and responsive. https://www.filemagic.com/en/uncommon-files/b0r-file-extension/four-easy-ways-to-open-b0r-files/