In RouterOS v6.43 and newer, backups are encrypted by default if a password is provided.
Avoid unofficial "extractors." Use the CHR method instead. open mikrotik backup file
Since MikroTik .backup files are binary and encrypted/archived specifically for RouterOS, they are not human-readable by default. In RouterOS v6
Treat a .backup file like a locked box. You need the key (a running RouterOS instance) to open it. Once opened, export the contents to .rsc —that’s your true readable config. In RouterOS v6.43 and newer