File Extension Library


.L3B File Extension

  • Category: 3d graphics, CAD-CAM-CAE Files

What is an .L3B file?

.L3B file extension has been classified as 3d graphics, CAD-CAM-CAE Files.

.L3B is SR 3D Builder model

The l3b file extension is related to the SR 3D Builder, a software for Microsoft Windows operating system, which allows users to create 3D designs from LEGO bricks.

The l3b file stores model created in SR 3D Builder.


How to open:

Use SR 3D Builder to open *.l3b files.

How to convert:

SR 3D Builder may be able to export *.l3b files to other formats.

How to Open .L3B file on different platforms

Open .L3B File on Windows

  • Right-click a .L3B
  • Left-click "Open With" > "Choose another app"
  • Select the program that opens .L3B file and Select check box "Always use this app to open .L3B files" Press "Ok"

Open .L3B File on Mac

  • Right-click (or Ctrl + Left-click) the .L3B file
  • Click "Open With" > "Other.."
  • Then choose another program from the app list and press "Open"
  • Select check box "Turn on" for "Always open in app"

Open .L3B File on Linux

Right click on the .L3B file, choose "Open with" and select a program from the list above

Open .L3B File on iPhone

Select a file. If you don't see an application to open the .L3B file, tap "Share" and choose the right app.
Method 2
Save the file. Then open the app «Files». Touch and hold the file, then release your finger. You will see a black menu bar. After that tap "Share" and select an application.

Open .L3B File on Android

Tap the Settings icon on an Android smartphone, then select «Applications». Click the Settings icon in the upper right corner of the screen, to change the default apps.
If you want to open, edit, save or even convert .L3B files on Android, then your best bet is to download one of the dedicated apps available on Google Play.

How to fix problems with .L3B files

  1. You need to update the application that you normally use to open .L3B files. Only the latest version of the software supports the current .L3B file format
  2. You need to check the .L3B file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)