A gbt file extension is related to the GFI Backup software for Windows.
There is one other file type using
the GBT file extension!
.gbt - Adobe Photoshop data
GBT file extension - GFI Backup task
What is gbt file? How to open gbt files?
File type specification:
A gbt file extension is associated with the GFI Backup, an application for Microsoft Windows operating system that allows users to backup important data.
A gbt file file stores task used by GFI Backup tool.
This gbt 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.