>> CSS file

CSS file format description

Many people share .css files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .css file can be edited, converted or printed with. On this page, we try to provide assistance for handling .css files.

1 filename extension(s) found in our database.

.css - Cascading Style Sheets

The CSS document files are related to Internet Explorer. Cascading Style Sheets (CSS) is a simple mechanism for adding style (e.g. fonts, colors, spacing) to Web documents. The Internet Explorer seems to be no longer supported.

Internet Explorer
Document files
- / -
Cascading Style Sheets related extensions:
Singer Futura Embroidery Design
Electronic Fiction Manuscript
OpenDocument Flat XML Presentation
LinSig 3 Document
Olivetti Olitext Plus Document
DEC DX Document

Naturally, other applications may also use the .css file extension. Even harmful programs can create .css files. Be especially cautious with .css files coming from an unknown source!

Can't open a .css file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows can't open this file:


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 one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

The .css file extension is often given incorrectly!

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

ccs, csq, cxs, xss, sss, scs, dss, cws, csx, csc, cqs, vss, ss, fss, csz

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

CodeCharge Studio Project
Microsoft Visual FoxPro Client-Server Query File
ConciseXML Format Data
ChordWizard Songtrix Song
Scheme Source Code
18 Wheels of Steel CSC Data

Operating systems

DataTypes.net currently supports the following operating systems:

Windows XP/Vista, Windows 7/8, Windows 10, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, Mac OS X, iOS, Android

If you find the information on this page useful, please feel free to link to this page.


If you have useful information about the .css file format, then write to us!

Please help us by rating this page below.

3/5 based on 12 reviews.
Thanks for rating!
Invalid rating.