CFG File Extension
Configuration Format
- File Type cfg
- Popularity
- Application Sublime Text
- Category Configuration Files
- Format Text
What is a CFG file?
Configuration Format, identified by the CFG extension, is a Configuration Files type and includes 200 files.
CFG files are supported by Windows, Mac OS and Linux. You can open a CFG file using one of 10 programs, for example Sublime Text, Atom and Gedit.
Programs that support CFG files
How to open a CFG file?
The most common reason why a CFG file cannot be opened is the absence of required software. To fix this, select a compatible program from the list. Then visit the official developer website via the provided link, download the program, and install it on your system.
The most popular programs for working with CFG files are Sublime Text, Atom and Gedit. To get the latest version of Sublime Text, open the Sublime HQ Pty website where a universal installer for all operating systems is available.
Once setup is done, your operating system should assign Sublime Text as the default app for CFG files.
Make Sublime Text the default CFG viewer
Changing the default program in Windows
- Start by right-clicking on your CFG file and selecting the "Open With" option. From there, click "Choose another app" to continue;
- Inside the popup window, scroll through the list of applications and specifically choose Sublime Text as the application to associate with your CFG file;
- Check the "Always use this app" checkbox and click "OK".
Change the default app to open files on Mac
- Right click or use Control + Left Click on the desired CFG file to access a dropdown menu of actions;
- Select "Open in application" and click "Other";
- Scroll down to the bottom of the window, where you will find the "Enable" menu. Default, "Recommended Programs" will be selected;
- In this menu, choose "All Programs" and navigate to Sublime Text. Check the box next to "Always open in app" to make it the default program.
How to edit a CFG file?
To edit CFG files, you need to install specialized software that allows you not only to open but also to modify configuration files. Online CFG editors usually provide fewer features than software created specifically for Configuration Format.
List of Top CFG editors 2026
Following these criteria, we have put together a list of recommended CFG editors.
| CFG Editor Software | Developer | Platforms | Overall Rating |
|---|---|---|---|
| TextEdit | Apple | Mac OS | 4.8 out of 5 (40 reviews) |
| PSPad | Jan Fiala | Windows | 4.7 out of 5 (41 review) |
| Gedit | GNOME | Linux | 4.6 out of 5 (38 reviews) |
| Notepad++ | Notepad++ Team | Windows | 4.6 out of 5 (37 reviews) |
| Sublime Text | Sublime HQ Pty | Windows, Mac OS, Linux | 4.6 out of 5 (39 reviews) |
| Windows Notepad | Microsoft | Windows | 4.2 out of 5 (37 reviews) |
| Atom | - | Windows, Mac OS, Linux | 4.1 out of 5 (36 reviews) |
Finding answers to CFG file problems
If you encounter issues with CFG files, don’t worry—most can be fixed with minor software adjustments. Refer to the troubleshooting tips below.
What are the signs that my CFG file is damaged?
Corrupted CFG configuration files may have one or more of the following symptoms:
- Poor performance when editing a file in Sublime Text;
- Opening or processing the file in Sublime Text or other programs causes instability or crashes in the program;
- The file shows errors when trying to open it or does not open completely;
- Unexpected expansion of the total size of the CFG file;
- Working with the file triggers the display of error messages;
Why does Sublime Text quit or crash unexpectedly?
Sublime Text crashes can be attributed to outdated software. Make sure you have installed the latest updates for Sublime HQ Pty products.
A computer restart is often the key to solving numerous common problems. That’s why, it is recommended to restart the computer before making any changes to the software settings.
What methods can be used to repair a damaged CFG file?
Use a recovery program to open the damaged CFG file and navigate to the "Repair" menu item. Wait for the recovery process to finish, as it will automatically repair damaged configuration files.