How to open backup file? Corruption in BKF files can happen due to reasons like missing catalog files, hardware crash, OS malfunctioning, FAT file system has low storage space, virus attack etc. To deal with such corruption scenarios and recover BKF file in best possible manner, you can use BKF Recovery software. This software application is applauded by numerous users due to advanced scanning algorithms and simple interface to recover BKF file. With this best way to restore BKF file, you can recover backup data created using NTBackup utility, Backup Exec by VERITAS and other utilities that support Microsoft Tape Format.