File extension CG4
| File type | CALS Group IV Bitmap Graphics |
| Developer | N/A |
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What is a CG4 file?
CG4 is a legacy bitmap image format. CG4 may be converted into other image formats using tools included with CorelDraw Graphics Suite.
CG4 format was developed for US Department of Defense. Format specification for CG4 is classified. CG4 format was obsoleted many years ago and thus th probability of encountering such files is very small.
Program(s) that can open the .CG4 file
Windows
How to open CG4 files
If you cannot open the CG4 file on your computer - there may be several reasons. The first and most important reason (the most common) is the lack of a suitable software that supports CG4 among those that are installed on your device.
A very simple way to solve this problem is to find and download the appropriate application. The first part of the task has already been done – the software supporting the CG4 file can be found in the table. Now just download and install the appropriate application.
Possible problems with the CG4 format files
The inability to open and operate the CG4 file does not necessarily mean that you do not have an appropriate software installed on your computer. There may be other problems that also block our ability to operate the CALS Group IV Bitmap Graphics file. Below is a list of possible problems.
- Corruption of a CG4 file which is being opened
- Incorrect links to the CG4 file in registry entries.
- Accidental deletion of the description of the CG4 from the Windows registry
- Incomplete installation of an application that supports the CG4 format
- The CG4 file which is being opened is infected with an undesirable malware.
- The computer does not have enough hardware resources to cope with the opening of the CG4 file.
- Drivers of equipment used by the computer to open a CG4 file are out of date.
If you are sure that all of these reasons do not exist in your case (or have already been eliminated), the CG4 file should operate with your programs without any problem. If the problem with the CG4 file has not been solved, it may be due to the fact that in this case there is also another rare problem with the CG4 file. In this case, the only you can do is to ask for assistance of a professional staff.
Updated 04/24/2022
This extension
can be converted to:
How to associate the file with an installed software?
If you want to associate a file with a new program (e.g. my-file.CG4) you have two ways to do it. The first and the easiest one is to right-click on the selected CG4 file. From the drop-down menu select "Choose default program", then click "Browse" and find the desired program. The whole operation must be confirmed by clicking OK. The second and more difficult to do is associate the CG4 file extension to the corresponding software in the Windows Registry.
Is there one way to open unknown files?
Many files contain only simple text data. It is possible that while opening unknown files (e.g. CG4) with a simple text editor like Windows Notepad will allow us to see some of the data encoded in the file. This method allows you to preview the contents of many files, but probably not in such a structure as a program dedicated to support them.