TreePad backup file
File type: Backup file
A .bbk file is a backup file created by TreePad, a personal information manager for Microsoft Windows.
It contains a backup copy of a TreePad .blb file.
File type category:
Backup file
Date updated: October 16, 2026
TreePad is a personal information manager, organizer, database and word processor application for Microsoft Windows. It stores a user's information in .blb files and can create .bbk files as backups of those files.
A .bbk file is intended for recovering TreePad data if the corresponding .blb file is damaged, lost or replaced. It is a backup format associated with the Windows version of TreePad rather than a normal document format for separate use.
Open the .bbk file with TreePad on Microsoft Windows. TreePad can use the backup to restore the associated information.
Work with a copy of the backup when possible, so the original .bbk file remains available for recovery.
A .bbk file is a backup rather than a document format intended for direct conversion and typically cannot be converted. Restore it in TreePad to recover the data.
After restoration, use TreePad's own save or export features to create another format, if the installed version provides them.
Software apps that create bbk files:
Microsoft Windows
TreePad
Software apps that backup bbk files:
Microsoft Windows
TreePad
Software apps that recover bbk files:
Microsoft Windows
TreePad
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