.BTY File

The bty file extension is associated with the Railroad Tycoon 3, a business simulation and building computer game for Microsoft Windows and Mac OS X (macOS) operating systems.

The bty file stores 3D model of a building.

How to open:

You cannot open this file type manually, it is accessed by the game automatically.

How to convert:

These games files cannot be converted to anything else. However, sometimes modding.