.BNS File

The bns file extension is associated with the Portal first person puzzle solving computer game developed by Valve.

The bns file contains scripts (map settings, list of puzzles, comments etc.) in simple text file format for Portal map files.

A bns file extension is related to the Portal a first person shooter. A bns file stores game script.

How to open:

Use any text editor to view content of *.bns files.

How to convert:

Probably cannot be converted to anything else.