What is a .CSS File And How To Open It (Easy Guide)

Table of Contents

Introduction

Have you came across a file with the .css extension, but it is a file you have never seen before? It is important to know how to open this file – in order to be able to work with it. That’s why you are here! We have made this guide for you to learn more about the .css file extension and how to open it.

What is a .CSS file?

The .CSS file extension is from Cascading Style Sheet. This web related file is in text format.

What to know

There are currently 4 software that can open the .css file on 3 platforms.

How to open a .CSS file?

Below you can find an easy to understand, step-by-step guide to open the .CSS file on your operating system/device.

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

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

1. The first step is to download the Notepad++ software. You will be using this software in order to open the file. You can also use Adobe ColdFusion Builder and Notepad++ software.

Step 2

Step 2: Locating your .CSS file

2. In the second step you need to locate 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. After choosing the “Open with” option, you will have an option to choose the Notepad++ software you have downloaded. Click on the software and click “OK”. Congratulations! You have opened your file on Windows.

How to open a .CSS file on Mac

There are 4 simple steps to open the .css file on Mac.

1. The first step is to download the Adobe ColdFusion Builder software. This software will be used for opening the file. The other software that you can use is Adobe ColdFusion Builder and Apple TextEdit.

Step 2

Step 2: Finding your .CSS file

2. In the second step you need to locate 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: 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 Adobe ColdFusion Builder software that you have downloaded. Click on the software and click “OK”. Congratulations! You have opened your file on Mac.

How to open a .CSS file on Linux

To open the .css file on Linux, please follow these 4 easy steps.

1. The first step is to download the Microsoft Visual Studio Code software. This software will be used for opening the file. You can also use Microsoft Visual Studio Code software.

Step 2

Step 2: Locate the .CSS file

2. In the second step you need to locate 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: Hover over the “Open with” button

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

Step 4

Step 4: Open the file choosing the software

4. In the fourth step, after clicking “Open with”, you should see the Microsoft Visual Studio Code software that you have downloaded. Click on the software and click “OK”. That’s all, now you have opened your file on Linux.

Still cannot open the .CSS file?

If you are still unable to open the .CSS file, it might be because you are trying to open the wrong one. There are many similar file extensions that look like the .CSS file.cst – CELSYS, .cst – Adobe Systems, .cst – ACD Systems, .cst – Viva Media, .cst – ContentServ. You might be trying to open one of them. Please recheck the file extension again.

Conclusion

In this article you have learned how to open the .CSS file with the Notepad++, Adobe ColdFusion Builder programs on Windows, Adobe ColdFusion Builder, Apple TextEdit programs on Mac and Microsoft Visual Studio Code software on Linux.