How to open .bns file format?

The probably reason why you are at this website is a problem with opening .bns file. The full name of the file is Portal Bonus Map Script. If the double-click on the file’s icon shows you a message that additional programs are needed to open the file, you’ll find the list of helpful programs in the bottom of the page.The developer of this format is Valve.

.bns file extension (Portal Bonus Map Script)

Category Developer/Producer File description Popularity
Game Files Valve Portal Bonus Map Script
Programs using this file extension: .bns
ADS OS Software
  • Valve Portal 2
  • Valve Portal
  • Valve Portal 2
  • Valve Portal

The file extension .bns can be used by another programs. If you have some useful information about .bns file type that may help other users, please send them to us and we’ll update our database.

Visiting our website you are probably asking yourself:
  • What application can open .bns file?
  • How to open .bns file?
  • What is .bns file?
  • How can I convert .bns file?
  • Where can I find informations about .bns file extension?
We hope we have given you enough informations about this file type. Otherwise you can search some informations about .bns extension on or