The file appears to be a compressed archive related to a fan-made game or modification, likely associated with the Biohazard (Resident Evil) series or a similarly named indie project.
: Since files like this often circulate on community forums or third-party hosting sites, you should always scan them with updated antivirus software before opening the contents. BioasshardArena.rar
Based on common usage for files with this naming convention, here are the likely details regarding this file: The file appears to be a compressed archive