What is a .SIM File And How To Open It – Valve (Simple Steps)


Have you downloaded a file with .sim extension, but you have never seen this extension before? You most likely know what the file is, but you might be unsure on how to open it. Fear not, in this article we will show you how to easily open the .sim file in few simple steps on various systems.

What is a .SIM file?

The .SIM file extension stands for Steam Game Backup Information File. The development of this file was done by Valve. This backup file is in binary format.

What to know

There is currently 1 software that can open the .sim file on 1 platform.

How to open a .SIM file?

Below we will show you a step-by-step guide on how to open the .SIM file on various operating systems.

How to open a .SIM file on Windows (7, 8, 10)

Below you can see a visual guide on how to open the .sim file on Windows in 4 easy steps.

1. The first step is to download the Valve Steam software. You will be using this software in order to open the file. Other software that can be used in opening this file is: Valve Steam.

Step 2

Step 2: Locating your .SIM file

2. The second step is locating the downloaded file. The file can be usually found in your /download/ folder if you don’t remember where you have downloaded it to.

Step 3

Step 3: Choose “Open with”

3. In the third step right click on your file and choose “Open with”.

Step 4

Step 4: Choose the software and click ok

4. In the fourth step, after clicking “Open with”, you should see the Valve Steam software that you have downloaded. Choose your software and click on “OK”. Congratulations! You have opened your file on Windows.

Still cannot open the .SIM file?

If you cannot open the .SIM file, it is entirely possible that you are trying to open the wrong file. There are many similar file extensions that look like the .SIM file.sim – SAP, .sim – Electronic Arts. You might be trying to open one of them. Please recheck the file extension again.


In this article you have learned how to open the .SIM file with the Valve Steam program on Windows.