An ibg file extension is related to the NASA PDS graphic format.
There is one other file type using
the IBG file extension!
.ibg - iBridge project workspace format
IBG file extension - NASA PDS graphic format
What is ibg file? How to open ibg files?
File type specification:
The ibg file format is associated with planetary image format developed by NASA (National Aeronautics and Space Administration) agency.
The PDS graphic format is used to store detailed picture images.
This ibg 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.