The File Extensions Database

.B1 File Extension

  • Developer by: Catalina Group
  • Category: Compressed Files
  • Format: Binary

What is an .B1 file?

.B1 is B1 Compressed Archive

Compressed archive created by B1 Free Archiver, a free file compression utility; based off of the .LZMA format and uses an openly published format; can be opened with B1 Free Archiver to extract the original set of files.

Programs that open B1 Compressed Archive
B1 Free Archiver
B1 Free Archiver
B1 Free Archiver
B1 Free Archiver

How to solve problems with B1 files

  • Associate the B1 file extension with the correct application. On :
    Windows: Right click on any B1 file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.B1 files". Mac: Right click (or Ctrl-click) the B1 file, then click "Open with" > "Other...". Then choose another program and check the "Always Open With" box. Linux: Right click on the file, and select "Open with" and choose another program. iPhone: Tap the file. If you do not see an app to open the file, then tap Share "Share" and choose an app. Alternatively, save the file. Then open the Files app Files app. There long-press on the file, then release your finger. You will see a black menu bar. Then tap "Share" and select an app. Android: Tap the Settings icon on your smartphone, then tap on the Apps section. There tap the Options icon in the top right-hand corner of the screen to change the default apps.
  • Update your software that should actually open .B1 is B1 Compressed Archive. Because only the current version supports the latest B1 file format. Search, therefore, e.g. on the Catalina Group manufacturer website after an available .B1 is B1 Compressed Archive update.
  • To make sure that your B1 file is not corrupted or virus-infected, get the file again and scan it with antivirus software.