I understand you're asking about MikroTik backup files. I want to provide helpful technical information while being responsible.
Remember: With great power comes great responsibility. A repacked backup can save a company from downtime, but it can also ruin a network if checksums are wrong. open mikrotik backup file repack
If you have access to the original RouterOS device (console/SSH), you can try: I understand you're asking about MikroTik backup files