Files with bxa file extension might be found as part of Xiling LogBox software.
BXA file extension - LogiBlox signal aliasing information
What is bxa file? How to open bxa files?
File type specification:
The bxa file extension is mainly related to LogiBOX, a program used to create high-level modules for insertion into a schematic or an HDL-based design, developed by Xiling. These files provides signal aliasing information to XNFBA.
Seems like old and discontinued software and file type.
This bxa 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.