.VBOX-EXTPACK file type is associated with Oracle VM VirtualBox. This is virtualization software which allows cross platform running.
The operating system is run by this software application with the help of specific files which contain data required for running of operating system. In order to run that operating system the user has to install the file first. Expansion pack defines how the file will be installed. These expansion packs have extension of .VBOX-EXTPACK. The expansion pack has additional support of drivers in it and all the data required for additional driver support and plugin installation is saved in expansion pack.
In addition to the problem described above, i.e. the lack of the appropriate application to support the .VBOX-EXTPACK file, there may be several reasons that cause problems with opening and operation of the data format:
A quite common problem is the lack of application in the appropriate version. Even if you have an application, with the help of which you should open the .VBOX-EXTPACK file, you may have a problem with it because of its version. Perhaps in previous versions the application has not yet supported the .VBOX-EXTPACK file, so download the update and check again.
If you have already installed the appropriate application, and it is the correct version, the file may not open correctly, because the operating system does not have information that this program supports the file. So you need to "show" which program the computer should use. To do this:
It also happens that the file you want to open is corrupt and therefore there is no such possibility. In this situation, you should find its different version, or ask a person from whom you got, to send it again.
There may be several reasons why you cannot open the file with .VBOX-EXTPACK extension. Directly on this website you can find a solution of the most common problem with the .VBOX-EXTPACK file – that you do not have on your computer the appropriate program to open the file.