LAS File Extension

Programs that support LAS files

• Windows ⁵
• Mac OS ²
• Linux ²

Windows

• Notepad++
• PSPad
• Sublime Text
• Atom
• Well Viewer

Mac OS

• Sublime Text
• Atom

Linux

• Sublime Text
• Atom

How to open a LAS file?

If you are having trouble opening a LAS file, it usually means the right software is not installed. Choose a program from the list that matches your operating system. Next, visit the official website of the developer, download the software, and install it on your device.

The most popular programs for working with LAS files are Sublime Text, Notepad++ and PSPad. To install the current version of Notepad++, go directly to the official Notepad++ Team website. The universal package for all operating systems is available there.

After setup, the operating system should recognize LAS files and link them with Notepad++.

Setting Notepad++ as default LAS viewer

Changing the default program in Windows

1. Right-click on your LAS file and choose the "Open With" option. Then click "Choose another app" to continue the process;
2. Choose Notepad++ from the available applications listed in the pop-up window to set it as the default application to open your LAS file;
3. Be sure to check the "Always use this app" checkbox, and then click "OK" to confirm your selection.

Change the default app for a file type in Mac

1. Initiate a right click or use Control + left click on the desired LAS file to open a menu where you can select various actions;
2. Select "Open in application" and click "Other";
3. Scroll down to the bottom of the window, and there you will find the "Enable" menu. The default selection is "Recommended Programs";
4. Choose "All Programs" within this menu and locate Notepad++. Check the box next to "Always open in app" to set it as the default program.

Convert to and from LAS

For difficult LAS files, try converting them to formats like GDB, ADF or similar formats to improve usability.

Please note that after converting a LAS file, some functionality may differ from the original. However, in many cases, it can be converted back to its original format.

Convert LAS to other file formats

• LAS to GDB
• LAS to ADF

Tips and tricks to solve problems with LAS files

LAS files can sometimes be tricky, but minor software adjustments usually resolve the issues. Refer to the tips below for guidance.

How to edit a LAS file?

To edit LAS files, you need to install specialized software that allows you not only to open but also to modify text files. Online LAS editors usually provide fewer features than software created specifically for LIDAR Data Exchange Format.

Best LAS editors in 2026

Based on your described criteria, here is a list of available LAS editors.