Files with ebj file extension could be found as error checking object files from Geoworks.
EBJ file extension - Geoworks error checking object
What is ebj file? How to open ebj files?
File type specification:
The ebj file extension is mainly related to old Geoworks program from early 90s and used for files that contain error checking object.
Much like the program, this file type is most likely obsolete.