Home : Extensions : .stl files

.stl File Extension

File Type 1Stereolithography File

Developer N/A
Category CAD files
File Format N/A

.STL Type 1

Design format used for stereolithography, a rapid prototyping technology used for producing three-dimensional parts; contains a 3D design used as a master model for creating numerous prototypes.

More Information

Stereolithography is an interchange file format. It is used to save CAD files in a standard format that can be read by multiple CAD applications.

Programs that open STL files

Windows
Adobe Acrobat
Autodesk 3ds Max
IMSI TurboCAD Pro 2017
Okino Computer Graphics PolyTrans
MeshLab
GLC_Player
Microsoft 3D Builder
Parametric Technology Creo
Dassault Systemes CATIA
Dassault Systemes SolidWorks
Kubotek KeyCreator
GOM Inspect
FreeCAD
MakerBot Desktop
ideaMK STL Viewer
Linux
Adobe Acrobat
MeshLab
GLC_Player
Dassault Systemes CATIA
FreeCAD
Macintosh
Adobe Acrobat
Cheetah3D
MeshLab
GLC_Player
Dassault Systemes SolidWorks
FreeCAD
MakerBot Desktop

File Type 2Certificate Trust List

Developer Microsoft
Category Web files
File Format N/A

.STL Type 2

List of predefined items that have been signed by a trusted entity; may consist of a list of filenames or a list of certificates; each item in the list has been approved by the signing entity.

More Information

Certificate trust lists (CTLs) are used by Microsoft IIS to store trusted websites and other addresses that require a secure connection.

Programs that open STL files

File Type 3SuperTux Level File

Developer SuperTux
Category Game files
File Format Text

.STL Type 3

Game file used by SuperTux, a 2D jump and run side scrolling game similar to Super Mario Bros.; saved in a plain text format and specifies the features of a level, such as enemy unit locations, positions of blocks, and the time limit; also includes a reference to the music and background image for the level.

More Information

STL files are stored in the /data/levels/ directory of the installation.

Programs that open STL files
Windows
SuperTux
Linux
SuperTux
Macintosh
SuperTux

File Type 4Spruce Technologies Subtitle File

Developer Spruce Technologies
Category Video files
File Format Text

.STL Type 4

Movie subtitles file used by video playback and authoring applications; stores the time each subtitle should be displayed; also specifies instructions for how to display subtitles; used for broadcasts, annotating video files, or for storing movie translations.

More Information

STL files contain commands, comments, and entries. Commands begin with the dollar sign ($) character and can specify fonts, colors, alignment, and other subtitle properties. Comments are delimited by "//" characters. Entries contain the actual subtitle timestamp and text. Here is an example entry:

00:00:11:13 , 00:00:11:42 , This is an example subtitle.

NOTE: STL subtitles are sometimes referred to as EBU subtitles, since the standard comes from the European Broadcasting Union (EBU).

Programs that open STL files
Windows
EZTitles
Avid Media Composer
Attractor Mobile Software Codec Packs
Macintosh
Apple Final Cut Pro
Apple DVD Studio Pro
Avid Media Composer

File Type 5Fireworks Style Library

Developer Adobe Systems
Category Data files
File Format N/A

.STL Type 5

Library of styles referenced by Macromedia (now Adobe) Fireworks; may be used to apply Stroke, Fill, Effect, and Text attributes to an object within an open Fireworks project; can be helpful for creating a uniform look across multiple objects.

More Information

Some styles are included with Fireworks, though additional styles may be added to the program. To add extra styles, click the small icon in the top right corner of the Styles panel in Fireworks and select "Import Styles." Then browse to an STL file and click OK to add the style library to your current collection.

Programs that open STL files
Windows
Adobe Fireworks
Macintosh
Adobe Fireworks

About STL Files

Our goal is to explain what .stl file is used for for and how to open it.

File Fireworks Style Library usage cases for Mac, Windows, Linux, Android, and iOS software listed on this page have been individually researched and verified using the FilesWiki team. We strive for 100% accuracy and only publish information about file formats that we have tested and verified.