A .B1 file works like a ZIP or 7Z container that groups one or more items into a single file for easier distribution or storage, with limited compression on already-compressed media; it may also be encrypted and require a password, and multi-part versions (`part1.b1`,...
A .B1 file is typically an archive package used to consolidate files/folders for sharing or backup, though pre-compressed media may not shrink much; B1 archives can include password protection, and large archives may be split into numbered parts that extract correctly...
A .B1 file is typically used as a multi-file archive much like ZIP or 7Z, bundling files/folders into one package for convenience or storage, and while compression varies depending on content, encrypted B1 files will prompt for a password; multi-part sets...