You can try the FREE Demo Version of BKF Repair software for which, you don't have to spend a single penny. It is absolutely FREE of cost! Demo version of the software reads corrupt BKF file and displays all files and folders in hierarchy from corrupt BKF files, but does not allows to extract or save files to the computer system.
DEMO version of BKF Repair is available for FREE download. To save & extract bkf files & folders from BKF file Purchase FULL Version of BKF Repair tool.