The File Extensions Database

.JBK File Extension

  • Developer by: Juno
  • Category: Backup Files
  • Format: Binary

What is an .JBK file?

.JBK is Juno Backup File

Backup file created by Juno Internet service software; introduced with version 5 of the Juno software and contains backups of program files and user data such as email; saved in a proprietary format and used for restoring data with the Juno software.

NOTE: You need a Juno account to download the Juno Software. JBK backups are specific to each account.

Programs that open Juno Backup File
Juno Software
Mozilla Firefox with Juno Software plug-in
Juno Software
Mozilla Firefox with Juno Software plug-in
Mozilla Firefox with Juno Software plug-in

How to solve problems with JBK files

  • Associate the JBK file extension with the correct application. On :
    Windows: Right click on any JBK file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.JBK files". Mac: Right click (or Ctrl-click) the JBK 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 .JBK is Juno Backup File. Because only the current version supports the latest JBK file format. Search, therefore, e.g. on the Juno manufacturer website after an available .JBK is Juno Backup File update.
  • To make sure that your JBK file is not corrupted or virus-infected, get the file again and scan it with antivirus software.