CSSfile extension

Cascading Style Sheet
By W3C

Have trouble opening the .css extension? Don't panic! This page explains css files and suggests programs you may use to open css files. You can download these programs through this page!

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What is CSS file?

A CSS file is considered a cascading style sheet (CSS) file for formatting web page content. This file has configurable global properties on the display of HTML elements. For example, CSS files determine the size, color, font, line spacing, indentation, borders, and where HTML elements should be placed.

Additional data

CSS was introduced in 1996 by the W3C. Web developers and designers use CSS files to create consistent looks and feel for every page on the site. CSS files store the display properties of several pages in a single file and reduce the amount of work with the amount of generated HTML code.

Any web page that links to a CSS file will change based on the properties of the CSS file. For example, the designer can change the font and add padding to the text. When a page links to the same CSS file, it will only need to change a single CSS file, not all individual pages.


How to open CSS file?

Here are some universal methods of opening a file. Please, use this list of solutions.

Method 1: Correctly fix file association error

By following these steps, the user will be able to fix the css extension association problem in an instant automatically:

Download Solution

Step 1: Click the "Download Solution" button to download the automatic tool from Appsitory.

Step 2: Now click "Start Scan" to find out all potential problems.

Step 3: Review the resulting scan and click the "Fix Items" option.

Method 2: Download apps that open the css file

Here is a list of the presented programs that you should use to open/convert the css file. You can choose the right program for your OS and click on it to start the download. You can also visit the developer's website.

Apps that open CSS files

Method 3: Use Universal File Viewer

The recommended use of Universal File Viewer, a tool for opening over 250 file extensions, complements the list of programs above. This utility is capable of opening your css file. Download Universal File Viewer to your OS quickly and securely.