How to open B1 files

Did your computer fail to open a B1 file? We explain what B1 files are and recommend software that we know can open or convert your files.

What is a B1 file?

The .b1 file extension is used for a compressed archive file format. This was developed by B1 Team for the B1 Archive Manager software, which is also known as B1 Free Archiver.This file compression tool can archive files and folders into B1 files using high compression ratio. These .b1 files may also be encrypted with 256-bit AES encryption standards.The B1 compressed archive file format was developed from an improved version of the LZMA compressed archive format. This .b1 file type is an open source archive format. To open .b1 files, just simply use the B1 Fre Archiver software.

Software that will open, convert or fix B1 files

These apps are known to open certain types of B1 files. Since many different programs may use B1 files for different purposes, you may need to try a few of the apps to open your specific B1 file.

WinRARWinRARUser submitted
B1 Free ArchiverB1 Free ArchiverUser submitted
XZipXZipUser submitted
ALZipALZipUser submitted
Microsoft Windows Media PlayerMicrosoft Windows Media PlayerUser submitted
We have not verified any programs that we know for certain can work with B1-files on Mac. If you know one, please use the Suggest link below and tell us about it!
We have not verified any online services that we know for certain can work with B1-files. If you know one, please use the Suggest link below and tell us about it!