Files with spt extension can be mainly found as 3D data from SpeedTree program.
There are 5 other file types using
the SPT file extension!
.spt - Spitbol language source code
.spt - TM FilePacker archive
.spt - Cypress Semiconductor USB console script file
.spt - Hell Quest AQW trainer data
.spt - ESPL programming code
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What is spt file? How to open spt files?
The spt file extension is mainly related to SpeedTree CAD software and used for one of its 3D data files. SpeedTree is used to for tree and vegetation modelling and rendering.
The typical spt file contains 3D tree graphics.
The default software associated to open spt file:

SpeedTree 
Company or developer:
Interactive Data Visualization, Inc.
SpeedTree is a powerful toolkit used to create 3D animated plants and trees for games, animations, visual effects shots, and architectural renderings.
Help how to open:
You can open these programs using SpeedTree. Some 3rd party programs might also be able to open this format, but a special plugin needs to be installed.
How to convert:
Some 3D modeling tools can process and export this format to other 3D format, mainly for exchange purpose.
Find conversions from spt file:
spt to 3ds
spt to a3s
spt to act
spt to step
spt to stp
Find converter to spt file type:
obj to spt
List of software applications associated to the .spt file extension
Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open spt file, edit spt file, convert spt file, view spt file, play spt file etc. (if exist software for corresponding action in File-Extensions.org's database).
Hint:
Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting spt files.
Software that open spt file - SpeedTree 3D tree graphics
Programs supporting the exension spt on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about SpeedTree for open spt file action.
spt file editor and apps that can edit spt file - SpeedTree 3D tree graphics
Programs supporting the exension spt on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about SpeedTree for edit spt file action.
spt file viewer - programs that view spt file - SpeedTree 3D tree graphics
Programs supporting the exension spt on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about listed programs for view spt file action.
Programs that can create spt file - SpeedTree 3D tree graphics
Programs supporting the exension spt on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about SpeedTree for create spt file action.
Software that import spt file - SpeedTree 3D tree graphics
Programs supporting the exension spt on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about listed programs for import spt file action.
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