After double-clicking on the unknown file icon, the system should open it in the default software that supports it. If this does not happen, download and install the WordPerfect Office software and then manually associate the file with it.
If there is no WordPerfect Office or similar software in the system that supports files with the {PB extension, you must first download and install it. Below you will find a list of the most-used applications that work with {PB. After going to the subpage of the program you will find a link to the developer's website, where you can safely download the software installer.
If the user already has one of the applications installed, the next step will be to associate it with the file extension {PB. This can be done in two ways - one is to manually edit the Windows Registry and HKEY_CLASSES_ROOT keys. The second way is simpler and definitely recommended for less advanced users.
Remember! Manually editing the system registry is only recommended for advanced users, and changes made to it without proper knowledge may result in damage to the system.
Sometimes it happens that despite having the right application and the correct configuration, there are still problems with opening the {PB files. You should then find out what is the reason of the problem.
When all of the above methods have failed, it remains to contact an IT specialist or developers of the WORDPERFECT OFFICE program.