Filename Extensions
If you are seeking information about file extensions, then you are in the right place at right time.

Details of extension .css

Below, you can find answers to the following questions:

  • What is the .css file?
  • Which program can create the .css file?
  • Where can you find a description of the .css format?
  • What can convert .css files to a different format?
  • Which MIME-type is associated with the .css extension?

1 extension(s) and 0 alias(es) in our database

Cascading Style Sheets .css file icon

Cascading Style Sheets

Cascading Style Sheets (CSS) is a simple mechanism for adding style (e.g. fonts, colors, spacing) to Web documents.
Category: Document files
Application: Internet Explorer
Program name: iexplore.exe
Mime-type: text/css
Magic bytes (HEX): -
Magic string (ASCII): -
Related extensions:
Active Server Page
Hypertext Markup Language Document
PHP Script
Microsoft Frontpage Theme Package
HTML Component
Multipurpose Internet Mail Extension HTML
ColdFusion Markup Language
Homestead Sitebuilder Document
HTML Document with SSI

Other types of files may also use the .css file extension. If you have helpful information about .css extension, write to us!

Is it possible that the filename extension is misspelled?

We found the following similar extensions in our database:

Visual C# .NET Class
Adobe Encore Color Set
ClearSilver Template File
ChordWizard Songtrix Song
18 Wheels of Steel CSC Data
STK Calculation Scalar File
Ovation Pro C Script
Siemens Mobil Phone Color Skin
CHARTrunner Control Chart Style

The .css filename extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

csc (30), cs (21), cws (12), scs (12), ss (5), csq (5), csz (4), csw (4), xss (3), dss (3), ccs (2), vss (2), fss (2), csx (2), cqs (1)

Can't open a .css file?

If you want to open a .css file on your computer, you just need to have the appropriate program installed. If the .css association isn't set correctly, you may receive the following error message:

Windows can't open this file:

File: example.css

To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select from a list of programs that are installed on your computer.

To change file associations:

  • Right-click a file with the extension whose association you want to change, and then click Open With.
  • In the Open With dialog box, click the program whith which you want the file to open, or click Browse to locate the program that you want.
  • Select the Always use the selected program to open this kind of file check box.

Supported operating systems

Windows Server 2003/2008/2012, Windows 7, Windows 8, Linux, FreeBSD, NetBSD, OpenBSD, Mac OS X, iOS, Android

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