A pb2 file extension is related to the OrindaBuild program. A pb2 file contains configuration data.
PB2 file extension - OrindaBuild configuration data
What is pb2 file? How to open pb2 files?
File type specification:
The pb2 file extension is associated with the OrindaBuild and used for its configuration files.
OrindaBuild is probably older, no longer supported application and file format, developed by Orinda Software.
This pb2 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.