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Basic information about BK9 file

When there is a problem with opening files with the file extension BK9（*.BK9 or *.bk9）, you do not need a computer expert. In most cases, using the helpful suggestions of experts contained in our website as well as appropriate programs, you can solve the problem with the BK9 file yourself.

There are 1 file types using the BK9 file extension in our database. In the further part of this page, you will find detail information about all the BK9 file with their brief description and a list of programs that support BK9 file sorted by operating systems. The table below provides useful information about the BK9 file extension. It answers questions such as:
  • What is the BK9 file?
  • How to open a BK9 file?
  • What programs do I need to open a BK9 file?
  • What programs help to create and edit a BK9 file?
  • How to convert BK9 files to another file format?
  • How to convert another files to BK9 file format?


1.Detail information about BK9 file extension: Corel WordPerfect Document Backup

File type Corel WordPerfect Document Backup Category Backup Files
Developer Corel Corporation File format N/A
Description BK9 file is a Corel WordPerfect Document Backup developed by Corel Corporation. Full format name of files that use BK9 extension is Corel WordPerfect Document Backup. Corel Corporation defined the Corel WordPerfect Document Backup format standard. BK9 files are supported by software applications available for devices running Windows. BK9 file format, along with 619 other file formats, belongs to the Archive Files category. WordPerfect Office supports BK9 files and is the most frequently used program to handle such files, yet 1 other tools may also be used. WordPerfect Office software was developed by Corel Corporation, and on its official website you may find more information about BK9 files or the WordPerfect Office software program.
Software programs that will open, edit or convert BK9 files

Windows		 Corel WordPerfect
Corel WordPerfect Office



Can't open a BK9 file?

When you click a file to open it, operating system examines the filename extension. If operating system recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When operating system does not recognize a filename extension, you receive the following message:

”Can't open this file: example.BK9”。

To open this file, you install one of the applications from the list of software programs that you found here, you should be able to open, edit or convert the file with the BK9 extension without any issue.


Where I can download the application that support BK9 file?

If you do not know where you can download the application from our list, click on the link (which is the name of the program), you will find more information there on the location where to download the required application. Most often they are the websites of software manufacturers.


How to change file associations?

  • Right-click a file with the extension whose association you want to change, and then click "Open With".
  • In the "Open With" dialog box, click the program whith which you want the file to open, or click "Browse" to locate the program that you want.
  • Select the ”Always use the selected program to open this kind of file” check box.


Can I change the extension of BK9 files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read/open the file. The problem is, changing the file extension does not change the file format. Select a software program from our list and install it on your computer. If the file has not opened correctly, you have to look for a different software program from our list. Sometimes you have to repeat the operation several times.


What else may cause problems width open a BK9 file?

The reasons for the lack of the ability to open a BK9 file on your computer may be at least several. The easiest thing is to find a suitable application installed on your computer, which will open a BK9 file. If there is still something wrong, you might want to check:

  • Whether the BK9 file is damaged.
  • Whether the BK9 file is incorrectly linked in the registry entries.
  • Whether the BK9 file extension has been accidentally removed from the Windows registry.
  • Whether the installation of an application that supports the BK9 file format is incompletely.
  • Whether the BK9 file is infected.
  • Whether the drivers of the equipment used for opening a BK9 file are up to date.
  • Whether your computer has enough hardware resources to open a BK9 file.

If the BK9 file still not working with your software after eliminating the above shortcomings? That means that the problem is more complex and requires the help of a specialist.