| File Type 1 |
Certificate Trust List (Most common) |
| File Format |
File |
| Common? |
No |
| File Description |
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.
Certificate trust lists (CTLs) are used by Microsoft IIS to store trusted websites and other addresses that require a secure connection. |
| Program(s) that open stl files |
Windows: Microsoft Internet Information Services (IIS) |
| File Type 2 |
Fireworks Style Library |
| File Format |
Proprietary File |
| Common? |
No |
| File Description |
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.
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. |
| Program(s) that open stl files |
Mac / Windows: Adobe Fireworks |
| File Type 3 |
Stereolithography File |
| File Format |
Standard File |
| Common? |
No |
| File Description |
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.
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. |
| Program(s) that open stl files |
Mac: IMSI TurboCAD; MeshLab
Windows: IMSI TurboCAD; Rapidform Basis; PTC Pro/ENGINEER; Dassault Systemes CATIA; MeshLab
Unix: PTC Pro/ENGINEER; Dassault Systemes CATIA; MeshLab |
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