Windows 10: What is an STL file? How to view STL files in Windows 10?

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This article talks about what is an STL file and how you can open and view it in Windows 10. STL stands for Standard Tessellation Language and Standard Triangle Language. A file with .stl extension is a 3D graphic file native to Stereolithography technology. Stereolithography is basically a type of 3D printing technology to create […]

This article What is an STL file? How to view STL files in Windows 10? first appeared on TheWindowsClub.com.

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default app to open .STL file

Why is it when I try to open an STL file from within the WinZip application I keep getting a popup asking if I still want to use Mixed Reality Viewer - or any other program I previously chose to be default for STL files?

If I unzip the file and open the STL file directly or if I open the ZIP file from the left pane of File Explorer (not using WinZip) then click the STL, I don't get the popup. It appears to only happen with STL files, but I have only tried TXT, JPG, and HTML
files.

w10 1803 17134.285

 

3D Builder slight distortion when saving .STL files

Hello,

To better assist you with the issue, please provide the following information:

• Have you tried to load and edit other file formats?
• Have you tried to load and edit other images not created in Align Technologies OrthoCAD?

We're looking forward to your reply.

 

Paint 3D cannot open STL files

Please update Paint 3D to be able to open STL files. View 3D *can* open them just fine.

When I open them in View 3D, and click the "Paint 3D" button, it gives this error message:

"We couldn't open Paint 3D. Wait a bit, then try again."

I did, and it keeps failing. So then, I manually go to Paint 3D, and open the file from there. In order to do that, I have to enter "*.*" as the filename, otherwise it won't pop up. The file types dropdown doesn't list STL files. But that's for good reason,
apparently, because Paint 3D says:

"Paint 3D can't read this file. It may be invalid, or in a format that we don't currently support."

So, recap:

1) The file is completely valid, because View 3D can open it just fine

2) Why can Paint 3D not open a file, while View 3D can?

3) Please add this functionality to paint 3D. It's an industry standard file type for 3D models.

This is on Windows 10.0.15063.