VTBuilder terrain data file
File type: GIS, GPS navigation and map file
A .bt file is a binary terrain data file containing an elevation grid in the BT format.
The format is associated with VTBuilder, which uses it to store terrain data for virtual-world and 3D terrain projects.
Found 3 different file type records with the same bt filename suffix.
File type category:
GIS, GPS navigation and map file
Date updated: October 17, 2026
The BT format was developed for VTBuilder, a terrain and virtual-world modelling tool from the Virtual Terrain Project. It stores terrain elevation as a grid in a compact binary representation.
The format was designed to be simple to read and write, while allowing different grid sizes and coordinate representations. It is intended for terrain elevation data rather than general 3D model data.
VTBuilder runs on Microsoft Windows. BT terrain data is also associated with ArcGIS on Microsoft Windows, where supported files can be used as elevation or raster data. The format remains a specialized terrain-data format.
On Microsoft Windows, open the .bt file in VTBuilder to view and work with its elevation grid. ArcGIS can also open supported BT terrain data for GIS use.
Open the terrain data in VTBuilder and export it to one of the terrain or modelling formats supported by that program. The available export formats depend on the version and the type of terrain data.
Software applications that can open bt files:
Microsoft Windows
Software applications that can edit bt files:
Microsoft Windows
Software capable of saving bt files:
Microsoft Windows
Software apps that import bt files:
Microsoft Windows
Software applications that handle other tasks involving bt files:
Microsoft Windows
File type category:
Text file
Date updated: February 24, 2018
The bt file extension is related to the Binary Template Archive format used by 010 Editor.
010 Editor is text editor and hex editor for Microsoft Windows operating system.
One of the most powerful features of 010 Editor is the ability to parse virtually any binary file using a Binary Template. Instead of browsing through a long range of hex bytes as with traditional hex editors, Binary Templates allow a file to be understood. Templates are easy to write and can be used to completely parse any data format, such as BMP or ZIP files (Templates for reading these files are included with 010 Editor).
Use 010 Editor to work with *.bt files.
Software applications that can open bt files:
Microsoft Windows
Software applications that can edit bt files:
Microsoft Windows
Software capable of saving bt files:
Microsoft Windows
File type category:
Various data file
Date updated: April 27, 2018
The bt file extension is also related to BTwin software and used for its default project file format. BTwin is a Spanish engineering program for design of low voltage electricity systems.
Several programs from Arqui, including BTwin, ELwin and ILwin are able to open and access these projects.
Probably can be exported to other formats.
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