A gbb file extension is related to the Wiley eGrade gradebook backup format.

There is one other file type using
the GBB file extension!

empty icon.gbb - GBBPlug input data

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GBB file extension - Wiley eGrade gradebook backup

What is gbb file? How to open gbb files?

File type specification:

Backup file type icon Backup file type

The gbb file extension is associated with the Wiley eGrade, an online assignment system developed by John Wiley & Sons, Inc.

The gbb file contains gradebook backup from Wiley eGrade.

This gbb file type entry was marked as obsolete and no longer supported file format.

This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.

Help how to open GBB files:

This file type is not meant to be opened directly, there is no software that could open and work with it directly, or there is no information available in public sources about opening this file type. This is usually the case of some internal data files, caches, temporary files etc.

How to convert file with extension GBB:

As far as we know, this .gbb file type can't be converted to any other file format. This is usually the case of system, configuration, temporary, or data files containing data exclusive to only one software and used for its own purposes. Also some proprietary or closed file formats cannot be converted to more common file types in order to protect the intellectual property of the developer, which is for example the case of some DRM-protected multimedia files.

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