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CG4 file extension

The table below provides useful information about the .cg4 file extension. It answers questions such as:

  • What is the .cg4 file?
  • What program do I need to open a .cg4 file?
  • How can the .cg4 file be opened, edited or printed?
  • How can I convert .cg4 files to another format?

Table of Contents

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

✅ CALS Group 4 Bitmap

CG4 file is a CALS Group 4 Bitmap. CG4 is a raster format associated with CALS (Continuous Acquisition and Life-Cycle Support) program.
CG4 format description not yet available
Category: Graphic files
Application: reaConverter
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
CG4 aliases:
CG4 related links:
CG4 related extensions:

Other types of files may also use the .cg4 file extension.

🚫 The .cg4 file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

c4, xg4, cv4, ch4, cgr, cg, c4g, sg4, ct4, cgt, cge, cb4

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Edmics Image
Gerber Inner Routing Layer 1 Data
CaseMap 4 Template
Catia V5 Drawing
Clonk 4 Script
Microsoft CodeView Graphics Data
GOLD Parser Compiled Grammar Table
OpenClonk Game System Data
Scid Game Database
SmartCAM Code Generation Template

🔴 Can't open a .cg4 file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .cg4 file association, check the FAQ.

🔴 Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .cg4 file extension, write to us!

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