GCODE File Extension

What is GCODE file?

GCODE (G-code Source) is a text file that stores instructions for 3D printer written in G-Code language. G-Code is the standard language for many 3D printing devices. Some printers may require other file formats (STL, OBJ, X3G, 3MF or AMF) depending on the model. Although such formats use different languages, they perform a similar function. The standard was named G-Code because many of its command start with letter “G”.

G-CODE – how does it work?

GCODE files are generated based on CAD projects. Each project file is separated into lines which define commands for single layer of print. The commands define the printing speed, temperature and movements of each element of the printer. Single print layer can be described by a series of command. GCODE files should not be edited by users not familiar with the language.

Programs which support GCODE file extension

Below is a table that list programs that support GCODE files. Files with GCODE extension, just like any other file formats, can be found on any operating system. The files in question may be transferred to other devices, be it mobile or stationary, yet not all systems may be capable of properly handling such files.

Updated: 12/10/2023

How to open file with GCODE extension?

Problems with accessing GCODE may be due to various reasons. What is important, all common issues related to files with GCODE extension can be resolved by the users themselves. The process is quick and doesn’t involve an IT expert. We have prepared a listing of which will help you resolve your problems with GCODE files.

Step 1. Get the Sublime Text

Problems with opening and working with GCODE files are most probably having to do with no proper software compatible with GCODE files being present on your machine. The solution to this problem is very simple. Download Sublime Text and install it on your device. On the top of the page a list that contains all programs grouped based on operating systems supported can be found. The safest method of downloading Sublime Text installed is by going to developer’s website (Sublime HQ Pty Ltd) and downloading the software using provided links.

Step 2. Check the version of Sublime Text and update if needed

If the problems with opening GCODE files still occur even after installing Sublime Text, it is possible that you have an outdated version of the software. Check the developer’s website whether a newer version of Sublime Text is available. It may also happen that software creators by updating their applications add compatibility with other, newer file formats. The reason that Sublime Text cannot handle files with GCODE may be that the software is outdated. All of the file formats that were handled just fine by the previous versions of given program should be also possible to open using Sublime Text.

Step 3. Associate G-code Source files with Sublime Text

If the issue has not been solved in the previous step, you should associate GCODE files with latest version of Sublime Text you have installed on your device. The process of associating file formats with default application may differ in details depending on platform, but the basic procedure is very similar.

Change the default application in Windows

• Right-click the GCODE file and choose Open with option
• Select Choose another app → More apps
• Finally select Look for another app on this PC, point to the folder where Sublime Text is installed, check the Always use this app to open GCODE files box and conform your selection by clicking OK button

Change the default application in Mac OS

• From the drop-down menu, accessed by clicking the file with GCODE extension, select Information
• Proceed to the Open with section. If its closed, click the title to access available options
• Select the appropriate software and save your settings by clicking Change all
• If you followed the previous steps a message should appear: This change will be applied to all files with GCODE extension. Next, click the Continue button to finalize the process.

Step 4. Check the GCODE for errors

If you followed the instructions form the previous steps yet the issue is still not solved, you should verify the GCODE file in question. Being unable to access the file can be related to various issues.

1. Check the GCODE file for viruses or malware

Should it happed that the GCODE is infected with a virus, this may be that cause that prevents you from accessing it. Immediately scan the file using an antivirus tool or scan the whole system to ensure the whole system is safe. If the scanner detected that the GCODE file is unsafe, proceed as instructed by the antivirus program to neutralize the threat.

2. Check whether the file is corrupted or damaged

If the GCODE file was sent to you by someone else, ask this person to resend the file to you. It is possible that the file has not been properly copied to a data storage and is incomplete and therefore cannot be opened. When downloading the file with GCODE extension from the internet an error may occurred resulting in incomplete file. Try downloading the file again.

3. Check if the user that you are logged as has administrative privileges.

There is a possibility that the file in question can only be accessed by users with sufficient system privileges. Switch to an account that has required privileges and try opening the G-code Source file again.

4. Verify that your device fulfills the requirements to be able to open Sublime Text

The operating systems may note enough free resources to run the application that support GCODE files. Close all running programs and try opening the GCODE file.

5. Verify that your operating system and drivers are up to date

Regularly updated system, drivers, and programs keep your computer secure. This may also prevent problems with G-code Source files. It may be the case that the GCODE files work properly with updated software that addresses some system bugs.

Do you want to help?

If you have additional information about the GCODE file, we will be grateful if you share it with our users. To do this, use the form here and send us your information on GCODE file.