What is a .ACF File And How To Open It – Valve (Easy Guide)

Table of Contents

Introduction

Have you came across a file with the .acf extension, but it is a file you have never seen before? It is possible that you know what the file does, but you are unsure on how to open it. That’s why we have made this article! You will learn how to open the .acf file extension on various systems, what it is and how to work with it.

What is a .ACF file?

The .ACF file extension is Steam Application Cache File. The development of this file was done by Valve. This file belongs to the binary format and it is a game related file.

What to know

There is currently 1 software that can open the .acf file on 2 platforms.

How to open a .ACF file?

In this part of the article we will show you how to open the .ACF file on various operating systems.

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

There are 4 simple steps to open the .acf file on Windows.

1. In the first step you need 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 .ACF file

2. The second step is locating the downloaded file. If you don’t remember where you have downloaded your file to, you should check your /download/ folder as it usually gets automatically saved there.

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.

How to open a .ACF file on Mac

Below you can see a visual guide on how to open the .acf file on Mac 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: Finding your .ACF file

2. The second step is locating the downloaded file. If you don’t remember where you have downloaded your file to, you should check your /download/ folder as it usually gets automatically saved there.

Step 3

Step 3: Clicking “Open with”

3. In the third step, after locating your file, right click on it and click “Open with”.

Step 4

Step 4: Choosing the software to open your file

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”. That’s all, now you have opened your file on Mac.

Still cannot open the .ACF file?

If you cannot open the .ACF file, it is entirely possible that you are trying to open the wrong file. There are many similar file extensions that look like the .ACF file.acf – Laminar Research, .acf – Adobe Systems, .acf – Microsoft. You might be trying to open the wrong file, please recheck if you are trying to open the right file extension again.

Conclusion

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