Opening a CO2 File

The CO2 file type is primarily associated with Train Simulator.

CO2	File extension: CO2
	File type:	3D model data file

What is a CO2 file?

CO2 files mostly belong to Train Simulator. Train Simulator 3D Model & Save File: The CO2 file is a proprietary file used by Train Simulator. It stores the 3D model data along with simulation state information. This format holds the data that the game uses to recreate the train environment when you reload a saved session.
Key Details provided by FilExt.com:

3D Modeling Data: Contains the geometry and spatial structure of objects found in the simulation.

Simulation Save: Functions as a save file that records the state of the simulation.

Proprietary Format: Its binary design requires specific software to decode and view the data.

FilExt.com note: To open and view a CO2 file, use the Train Simulator software or a tool designed to handle its proprietary 3D model format.

How to open CO2 files

You need a suitable software like Train Simulator to open a CO2 file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your CO2 file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a CO2 file directly in the browser:. Just drag the file onto this browser window and drop it.

Online CO2 Text Viewer

Choose your .co2 file to analyze

or drag and drop it here

Online File Viewer

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Programs that open and convert CO2 files:

Train Simulator
See the previous paragraphs to learn more about the main application. CO2 files are often referred to as Train Simulator games because this type of file is primarily created or used by this software.
Train Simulator
A .CO2 file is a 3D model format primarily used by Train Simulator, a popular train simulation game. These files store 3D models of various objects, such as trains, buildings, and scenery, that are used within the game environment. The .CO2 format is specific to Train Simulator and is designed to efficiently load and render complex 3D models within the game's engine. These files play a crucial role in creating the visually rich and immersive experience of operating trains in a realistic simulated world. This file format is classified as 3D Model.

CO2 file format:

The file format, which is the arrangement and type of data in a file, determines which program can open the file. Each file format has a unique extension and almost always a unique signature. For example, Microsoft Word documents have the extension .docx and the signature (usually the first 3 characters in this file) PK. However, different programs can use the same file extension. Furthermore, a file extension can be renamed incorrectly and double-clicking on it will then display an error when it is opened. So you need a detailed analysis of a file to find out the format and the associated program. Our examination of the CO2 files comes to the following conclusion:

The CO2 file type predominantly uses a uniform format. The two most popular formats are as follows:

80% of all CO2 files have the same signature BND4. The content consists of illegible binary data, which can only be read and interpreted by the associated programs. The files are on average 28 MB in size and range from 9 MB to 28 MB. The file type is very recent. The keywords BND4 and 00000001 are typical for these files. Examples of file names are ER0000.co2 or NR0000.co2. Such files are related to draks.

The remaining 20% of all CO2 files are files with no common format. These files sometimes refer to mrec. You can get all the details of your CO2 file by dragging it onto this page or by clicking the button "Choose your .co2 file to analyze" above.

Technical Data for CO2 File Extension

File classification:

Game

Related files:

c02, ref, td, tit, co1, 3ds, obj, fbx, dae, stl

a co2 3D model data file is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with CO2 files

Associate the CO2 file extension with the correct application.
Update your software that should actually open 3d model data files. Because only the current version supports the latest CO2 file format. Search, therefore, e.g. on the manufacturer website after an available Train Simulator update.
To make sure that your CO2 file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .CO2 file online - secure, fast, and no downloads needed.