There are 8 other file types using
the STL file extension!
.stl - Stereolithography CAD file [common]
.stl - C++ standard template library
.stl - ClarisWorks data file
.stl - Micrografx Designer stylesheet file
.stl - EBU-standard open and teletext file
.stl - Adobe Fireworks style library file
.stl - Win2020 screen subtitle
.stl - ROSE Online file
STL file extension - SPEFO stellar spectra analysis file
What is stl file? How to open stl files?
File type specification:
The STL file extension is associated with the SPEFO (A Simple, Yet Powerful Program for One-Dimensional Spectra Processing) for MS-DOS operating system. The .stl file stores spectra analysis file is used by SPEFO.
The default software associated to stl file type:
Company or developer:
Astronomical Institute of the Academy of Sciences of the Czech Republic
SPEFO is a small, yet powerful program used for processing stellar spectra at the Astronomical Institute of the Academy of Sciences of the Czech Republic in Ondrejov. It was originally written in 1990 by Dr. Jirí Horn for processing spectral plates obtained with the 2m telescope of the Ondrejov observatory and scanned with the local five channel microphotometer. Since then the code had been under constant improvement until the sudden death of the author in December 1994. Currently SPEFO is used mainly for the reduction of data from the Ondrejov Reticon detector (1872 pixels, 12 bit A/D), however it can process data from other instruments too, provided that they are in FITS one-dimensional format.
List of recommended software applications associated to the .stl file extension
Recommended software programs are sorted by OS platform (Windows, macOS, Linux etc.) and possible program actions
that can be done with the file: like open stl file, edit stl file, convert stl file, view stl file, play stl file etc. (if exist software for corresponding action in File-Extensions.org's database).
- Others stl file
Unspecified and all other actions for computer programs working with stl file - SPEFO stellar spectra analysis file
Click on the software link for more information about SPEFO. SPEFO uses stl file type for its internal purposes and/or also by different way than common edit or open file actions (eg. to install/execute/support an application itself, to store application or user data, configure program etc.).