Just as the name suggests this is an application that works to create archives or extract files from them. It is a tool that supports most of the common archive file formats which include B1, 7Z, ZIPamong other file formats.
There are many file formats for archives and this utility handles them without any problem. I recommend using 7z format to get a small size and ZIP extension for a wide compatibility on different devices.
This tool is recommended for large files, to save time when you compress or decompress
ZIP is a free format and is widely used and recognized, unlike the RAR extension. This software offers its own B1 format but is not (yet) very popular among users. The application supports all the Windows Explorer functions (right-click menu) to a point that you have to manage the compress functions in a way that you just have to maintain the application in a simulation.
B1 Free Archiver is licensed as freeware for PC or laptop with Windows 32 bit and 64 bit operating system. It is in compression category and is available to all software users as a free download.