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STL file format description

STL file format

Many people share STL files but don't explain how to use them. This can make it hard to know which software can open, change, or print these files. We made this page to help you understand how to work with STL files. Here, you'll find info on software that works with these files. This includes simple programs for opening and converting them. We also share simple steps for editing these files and changing them into different formats. Whether you need to open, edit, or change a STL file, our website has all the tips and tools you'll need to do it easily.

13 filename extension(s) found in our database:

STL - SPEFO Stellar Spectra Analysis Data

The STL data files are related to SPEFO. The STL file is a SPEFO Stellar Spectra Analysis Data. SPEFO is a small program used for processing stellar spectra at the Astronomical Institute of the Academy of Sciences of the Czech Republic in Ondrejov.

Application:SPEFO
Category:Data files
Mime-type:application/octet-stream
Magic:- / -
Aliases:-

SPEFO Stellar Spectra Analysis Data related extensions:

  • eqw SPEFO Equivalent Widths Data
  • rai SPEFO Stellar Spectra Analysis Data
  • rci SPEFO Rectified Cleaned Data
  • rdi SPEFO Differential Spectrum Data

STL - Micrografx Designer Stylesheet

The STL data files are related to Corel Designer. The STL file is a Micrografx Designer Stylesheet. Micrografx Designer is a vector-based graphics program. It was originally developed by Micrografx, which was bought by Corel in 2001.

Application:Corel Designer
Category:Data files
Mime-type:application/octet-stream
Magic:- / -
Aliases:-

Micrografx Designer Stylesheet related extensions:

  • deltaskin Delta Emulator Skin
  • tun Total Uninstall System Changes Log
  • scriptlibrary Corel Painter Script Library
  • ky PeachText List Manager KY Data

STL - Visual Studio C++ Standard Template Library

The STL development files are related to Microsoft Visual Studio. The STL file is a Visual Studio C++ Standard Template Library. Microsoft Visual Studio is an integrated development environment (IDE) from Microsoft.

Application:Microsoft Visual Studio
Category:Development files
Mime-type:application/octet-stream
Magic:- / -
Aliases:-

Visual Studio C++ Standard Template Library related extensions:

  • sprite Scratch v1 Sprite
  • cg Nvidia CgFX Program
  • gmx GameMaker: Studio Data
  • rpt Xilinx ISE PIN2UCF Report Data

STL - ROSE Online 3D Model Data

The STL game data files are related to ROSE Online. The STL file is a ROSE Online 3D Model Data. ROSE Online (Rush On Seven Episodes Online) is a Massively Multiplayer Online Role-playing Game (MMORPG).

Application:ROSE Online
Category:Game Data files
Mime-type:application/octet-stream
Magic:- / -
Aliases:-

ROSE Online 3D Model Data related extensions:

  • g3x RealFlight Content
  • dac Chips Challenge DAC File
  • slak Starship Troopers Data
  • ydd Grand Theft Auto V Drawable Dictionary Data

STL - ClarisWorks STL Data

The STL data files are related to AppleWorks. The STL file is a ClarisWorks STL Data. ClarisWorks is an integrated office application, which provides word processing, graphics, illustration, spreadsheet, charting/graphing, presentation and database capabilities.

Application:AppleWorks
Category:Data files
Mime-type:application/octet-stream
Magic:- / -
Aliases:-

ClarisWorks STL Data related extensions:

  • ast ClarisWorks Assistant
  • cdrw ClarisWorks ClarisDraw Data
  • claf ClarisWorks Font
  • cw3 ClarisWorks 3 Document

STL - StereoLithography Data

The STL document files are related to SolidView. The STL file is a StereoLithography Data. STL is a file format native to the stereolithography CAD software created by 3D Systems.

Application:SolidView
Category:Document files
Mime-type:application/octet-stream
Magic:- / -
Aliases:bstl, stlb

StereoLithography Data related extensions:

  • stla ASCII StereoLithography Data
  • svd SolidView Design

STL - Spruce DVD Studio Pro Subtitle Data

The STL video files are related to DVD Studio Pro. The STL file is a Spruce DVD Studio Pro Subtitle Data. DVD Studio Pro is a discontinued dvd authoring software tool published by Apple Inc.

Application:DVD Studio Pro
Category:Video files
Mime-type:application/octet-stream
Magic:- / -
Aliases:-

Spruce DVD Studio Pro Subtitle Data related extensions:

  • wvh WebView Livescope Viewer Video
  • h263 H.263 Video
  • hq Apple ProRes 422 HQ Video
  • nuv MythTV NuppelVideo

STL - EBU-STL Standard Subtitle File

The STL video files are related to Adobe Premiere Pro. The STL file is an EBU-STL Standard Subtitle File. EBU STL is a standardized subtitle exchange format.

Application:Adobe Premiere Pro
Category:Video files
Mime-type:application/octet-stream
Magic:- / -
Aliases:-

EBU-STL Standard Subtitle File related extensions:

  • sec Disney Animation Studio Secured Animation
  • pvr Personal Video Recorder Video
  • avi Microsoft Video for Windows Movie
  • pss Sony PlayStation 2 Video Data

STL - Win2020 Subtitle Data

The STL video files are related to Win2020. The STL file is a Win2020 Subtitle Data. Win2020 is a discontinued software used to create screen subtitles. The Win2020 seems to be no longer supported.

Application:Win2020
Category:Video files
Mime-type:application/octet-stream
Magic:- / -
Aliases:-

Win2020 Subtitle Data related extensions:

  • dvf Panasonic DV Video File
  • mpsub MPlayer Subtitles File
  • dce DriveCam Video Event
  • bdn Blu-ray BDN XML Subtitle

STL - SuperTux Level Data

The STL game data files are related to SuperTux. The STL file is a SuperTux Level Data. SuperTux is a classic 2D jump'n run sidescroller game in a style similar to the original Super Mario games covered under the GPL.

Application:SuperTux
Category:Game Data files
Mime-type:application/octet-stream
Magic:- / -
Aliases:-

SuperTux Level Data related extensions:

  • sprite SuperTux Sprite Data
  • stsg SuperTux Saved Game
  • stwm SuperTux World Map

STL - Macromedia Fireworks Style Library

The STL data files are related to Macromedia Fireworks. The STL file is a Macromedia Fireworks Style Library.

Application:Macromedia Fireworks
Category:Data files
Mime-type:application/octet-stream
Magic:- / -
Aliases:-

Macromedia Fireworks Style Library related extensions:

  • ref RFSCAT Simulator Wind Field Reference Data
  • eabw Efficient Address Book v5 Data
  • ksds VSE/VSAM Key Field Sequence Data
  • xfg FACSGen Face Data

STL - ZX Spectrum Stellar Bitmap

The STL graphic files are related to Recoil. The STL file is a ZX Spectrum Stellar Bitmap. The ZX Spectrum is a home computer created by Sinclair Research Ltd in U.K. in 1982.

Application:Recoil
Category:Graphic files
Mime-type:application/octet-stream
Magic:- / -
Aliases:-

ZX Spectrum Stellar Bitmap related extensions:

  • 64c Commodore 64 8x8 Font Data
  • a Commodore 64 SEUCK Sprite Image
  • a4r Atari 8-bit Anime 4ever Image
  • abk Commodore Amiga AMOS Bitmap

CTL - Certificate Trust List

The CTL data files are related to Microsoft CryptoAPI. The CTL file is a Certificate Trust List. A CryptoAPI CTL is a list of items that has been signed by a trusted entity.

Application:Microsoft CryptoAPI
Category:Data files
Mime-type:application/octet-stream
Magic:- / -
Aliases:stl

Certificate Trust List related extensions:

  • ftm Fathom Data
  • nl Natron Layout Data
  • aup Epocrates PDA Medical Software Data
  • csp CorelDRAW Service Bureau Profiler Data

Did someone accidentally misspell the STL filename?

The STL filename extension may be misspelled. We compiled a list of similar file extensions to help you find errors.

Filename extensions similar to STL:

Windows can't open your STL file?

When you try to open a file by double-clicking it, Windows looks at the file's name to figure out what to do. If Windows doesn't know the file type, it'll ask you to choose an app to open this STL file.

To set the STL file association in Windows 11, you can follow these steps

  1. Open the Settings app by clicking on the Start menu and selecting the gear icon.
  2. In the Settings app, click on System and then select Apps from the left-hand side menu.
  3. Scroll down and click on the Default apps option.
  4. In the Default apps section, you will find various categories. They include Email, Web browser, and Music player.
  5. Locate the category that matches the file type you want to associate. For example, choose Photos for image files, or Video player for video files.
  6. Click on the current default app listed under the category. A list of available apps will appear.
  7. Choose the app you want to set as the default for that file type. If the app you want is not listed, click on More apps to see more options. Or, click on Look for an app in the Microsoft Store to search for apps.
  8. After selecting the app, it will become the default choice for opening files of that type.

It's worth mentioning that you don't always need to set STL file association. Many apps can open files. They don't need a specific file association to be set.

Handle STL files with care

Exercise caution when handling STL files from unknown sources. Files from certain sources can threaten your computer's security. They might contain malware, viruses, or harmful software. To minimize risks, avoid downloading or opening unfamiliar STL files. Use trusted antivirus software to scan files from unknown sources before opening.

If you find the information on this STL page useful, please feel free to link to this page.

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