CGX File Extension

CGX file icon

ARM RL-TCPnet HTTP Web Server XML Web Page Update Script

What is a CGX file?

The CGX file extension is linked to ARM RL-TCPnet HTTP Web Server XML Web Page Update Script and belongs to the Developer Files category, which includes 1166 files.

ARM Holdings, the developer of the ARM RL-TCPnet HTTP Web Server XML Web Page Update Script (CGX), has released file format and 4 programs designed to handle them.

CGX files are supported by Windows, Mac OS and Linux. There are 7 programs available to open a CGX file, including popular tools like RL-TCPnet, Atom and TextEdit.

How to open a CGX file?

If you are having trouble opening a CGX 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 CGX files are RL-TCPnet, Atom and TextEdit. To install the current version of RL-TCPnet, go directly to the official ARM Holdings website. The universal package for all operating systems is available there.

After setup, the operating system should recognize CGX files and link them with RL-TCPnet.

Setting RL-TCPnet as default CGX viewer

Changing the default program in Windows

  1. Right-click on your CGX file and choose the "Open With" option. Then click "Choose another app" to continue the process;
  2. Choose RL-TCPnet from the available applications listed in the pop-up window to set it as the default application to open your CGX 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 CGX 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 RL-TCPnet. Check the box next to "Always open in app" to set it as the default program.

How to edit a CGX file?

To edit CGX files, you need to install specialized software that allows you not only to open but also to modify developer files. Online CGX editors usually provide fewer features than software created specifically for ARM RL-TCPnet HTTP Web Server XML Web Page Update Script.

Best CGX editors in 2026

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

CGX Editor SoftwareDeveloperPlatformsOverall Rating
TextEditAppleMac OS4.8 out of 5 (40 reviews)
GeditGNOMELinux4.6 out of 5 (38 reviews)
Notepad++Notepad++ TeamWindows4.6 out of 5 (37 reviews)
Sublime TextSublime HQ PtyWindows, Mac OS, Linux4.6 out of 5 (39 reviews)
RL-TCPnetARM HoldingsWindows4.2 out of 5 (35 reviews)
Windows NotepadMicrosoftWindows4.2 out of 5 (37 reviews)
Atom-Windows, Mac OS, Linux4.1 out of 5 (36 reviews)

Tips and tricks to solve problems with CGX files

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

Are there any symptoms that my CGX file is damaged?

Corrupted CGX developer files may have one or more of the following symptoms:

  • File hangs or crashes in RL-TCPnet or other programs;
  • Error dialogs are displayed when interacting with the file;
  • The file does not open or opens with errors;
  • Unexplained increase in CGX file size;
  • Poor performance when editing a file in RL-TCPnet;

Why does RL-TCPnet crash or shut down frequently?

The absence of software updates can cause RL-TCPnet to crash. It is recommended to install the latest available updates for ARM Holdings products.

Restarting your computer is an essential troubleshooting step that can resolve many common problems. It is recommended to restart your computer before making any changes to the software settings.

Is there any specific software or utility that can help repair a damaged CGX file?

Start a data recovery program and open the damaged CGX file. Go to the menu and select the "Repair" option to repair the file. Then wait for the recovery process to complete, which allows you to automatically repair corrupted developer files.