Opening CSS Files

The CSS file type is primarily associated with Visual Studio Code.

CSSFile Extension CSS
File extension: CSS
File type:  style sheet

What is a CSS file

CSS files mostly belong to Visual Studio Code by Microsoft. A CSS file is a style sheet which defines rules for how the component elements of a web page are to be displayed. A CSS file is written in Cascading Style Sheets language. It contains directives, C-style multiline comments, selectors and their related rule blocks all of which are saved as text. The CSS file of a related web page is linked to the web page using the <link> element in HTML. Although CSS is mainly used for web applications, desktop applications such as Gnome desktop and Electron-based desktop applications use CSS style sheets.

How can I open a CSS file?

You need a suitable software like Visual Studio Code to open a CSS file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your CSS file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a CSS file directly in the browser:. Just drag the file onto this browser window and drop it.

Online CSS Text Viewer

Choose your .css file to view

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How to extract texts from CSS files or capture a screenshot to PDF, JPG, DOCX, TXT, ...

You can extract texts from CSS file or capture a preview screenshot using our online CSS file viewer:
  1. Just click the "Choose your .css file to view" button on this page.
  2. After your file is opened in browser,
  3. click "Save as..." in the menu.
  4. Then choose the file format (e.g. JPG, PDF, DOCX, TXT, ...) you want.
  5. Your file will be converted and downloaded.

Programs that open and convert CSS files:

  1. Visual Studio Code by Microsoft
    See the previous paragraphs to learn more about the main application. CSS files are often referred to as Visual Studio Code web (source)s because this type of file is primarily created or used by this software.
  2. Citadel SafStor (user script) by Microsoft
    Citadel SafStor is a Windows shell extension used to encrypt data. A user script used by Citadel SafStor is saved in a CSS file. This file format is classified as Developer.
  3. InterComm (part body definition) by OHIO Design Automation
    InterComm is a discontinued electronic circuit board design software for desktop platforms. It saves an electronic part body definition in a CSS file. This file format is classified as CAD.
  4. Statistica (data sheet) by TIBCO
    Statistica is a statistical data analysis and visualization software. It saves and exports a data sheet as a CSS file. This file format is classified as Data. Related links: StatSoft
  5. Stats+ (data) by TIBCO
    Stats+ is a discontinued program used for data statistical data analysis and visualization. It saves data in a CSS file. This file format is classified as Data. Related links: StatSoft
  6. Visual Studio Code (web page) by Microsoft
    Visual Studio Code is a cross-platform code editor optimized for web development. It can edit or rename an HTML web page which may have been accidentally saved as a CSS file. This file format is classified as Web (source).

CSS file format:

If you can determine the file format, the associated program can also be determined. The file format can be determined based on the file extension and the signature (the first few characters of a file). However, different programs can use the same file extension. Furthermore, a file extension can be renamed incorrectly and double-clicking on it will then display an error when it is opened. So you need a detailed analysis of a file to find out the format and the associated program. Our examination of the CSS files comes to the following conclusion:

CSS is one of the most common file extensions and uses a uniform format that many programs support. However, the following two file formats are common:

All other CSS files (63%) have no uniform format, such as UTF-8, HTML, charset, font, import, root, webkit, media and div. Files like these are sometimes linked to mobile, controller, stylesheet, chunk, jquery or base. Just click the "Choose your .css file to view" button on this page to find out what your CSS file is.

Technical Data for CSS File Extension

File classification:
Web (source)
Related links:
Mime type:

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: CascadingStyleSheetsFile, FileType: CascadingStyleSheets File, AppName: AceHTML 5 Freeware Executable
EXEFile: acehtml.exe

ProgramID: CSSfile, FileType: Cascading Style Sheet Document, AppName: Dreamweaver MX
EXEFile: Dreamweaver.exe

ProgramID: CSSfile, FileType: Cascading Style Sheet Document, AppName: Microsoft FrontPage
EXEFile: FRONTPG.EXE

ProgramID: CSSfile, FileType: Cascading Style Sheet Document, AppName: Microsoft Office FrontPage

ProgramID: CSSfile, FileType: Cascading Style Sheet Document, AppName: Microsoft Visual Studio .NET 2002
EXEFile: devenv.exe

ProgramID: CSSfile, FileType: Cascading Style Sheet Document, AppName: Stone's WebWriter 3

ProgramID: CSSFile, FileType: Cascading Style Sheet Document, AppName: TopStyle Lite
EXEFile: TSLite2.exe

ProgramID: CSSfile, FileType: CSS Stylesheet, AppName: TopStyle

ProgramID: CSSfile, FileType: HyperText Style Sheet, AppName: Development Environment

ProgramID: cssfile, FileType: SQ-HoTMetaL styles, AppName: Internal Name: CSS Editor; Original Filename: CssEdit.exe

ProgramID: UltraEdit.css, FileType: Cascading Style Sheet Document, AppName: UltraEdit-32 Professional Text/Hex Editor

ProgramID: CSSFile
EXEFile: %ProgramFiles%\Bradbury\TopStyle3\TopStyle3.exe %1

ProgramID: CSSFile
EXEFile: %ProgramFiles%\Bradbury\TopStyle3\TSLite3.exe %1

ProgramID: CSSfile
EXEFile: %ProgramFiles%\Bradbury\TOPSTY~1\TOPSTY~1.EXE %1

ProgramID: CSSfile
EXEFile: %ProgramFiles%\Macromedia\Dreamweaver MX 2004\Dreamweaver.exe %1

ProgramID: CSSfile
EXEFile: %ProgramFiles%\Macromedia\Dreamweaver MX\Dreamweaver.exe %1

ProgramID: CSSfile
EXEFile: %ProgramFiles%\MI1933~1\Office10\FRONTPG.EXE %1

ProgramID: cssfile
EXEFile: %ProgramFiles%\Microsoft Visual Studio .NET\Common7\IDE\devenv.exe /dde

ProgramID: CSSfile
EXEFile: %ProgramFiles%\Microsoft Visual Studio\Common\IDE\IDE98\devenv.exe %1

ProgramID: CSSfile
EXEFile: %ProgramFiles%\MICROS~1\Office10\FRONTPG.EXE %1

ProgramID: CSSfile
EXEFile: %ProgramFiles%\MICROS~2\Office10\FRONTPG.EXE %1

ProgramID: CSSfile
EXEFile: %ProgramFiles%\MICROS~2\OFFICE11\FRONTPG.EXE %1

ProgramID: CSSfile
EXEFile: %ProgramFiles%\MICROS~3\Office10\FRONTPG.EXE %1

ProgramID: CSSfile
EXEFile: %ProgramFiles%\MICROS~4\Office10\FRONTPG.EXE %1

ProgramID: CSSfile
EXEFile: %ProgramFiles%\TopStyle3\TopStyle3.exe %1

ProgramID: CSSFile
EXEFile: %ProgramFiles%\western civilisation\Style Master 3.5.2 Demo\Style Master 3.52.exe %1

ProgramID: CSSfile
EXEFile: E:\Dreamweaver 4\Dreamweaver.exe %1

ProgramID: CSSfile
EXEFile: Y:\Bradbury\TopStyle3\TopStyle3.exe %1

ProgramID: UltraEdit.css
EXEFile: %ProgramFiles%\UltraEdit\uedit32.exe %1

ProgramID: CSSfile
EXEFile: %ProgramFiles%\macromedia\dreamweaver mx 2004\dreamweaver.exe %1 does not exist.

ProgramID: CSSfile
EXEFile: %ProgramFiles%\Macromedia\Dreamweaver 4\Dreamweaver.exe %1

ProgramID: pnpcssfile
EXEFile: %ProgramFiles%\A Tech Group\Professional Notepad\notepad.exe %1

ProgramID: CSSfile
EXEFile: %ProgramFiles%\MICROS~1\OFFICE11\FRONTPG.EXE %1

ProgramID: UltraEdit.css
EXEFile: %ProgramFiles%\IDM Computer Solutions\UltraEdit-32\uedit32.exe %1

ProgramID: Cascading Style Sheets
EXEFile: %ProgramFiles%\HyperCoder Pro\HyperCoder Pro.exe %1

ProgramID: CSSfile
EXEFile: %ProgramFiles%\Bradbury\TOPSTY~1.5\TOPSTY~1.EXE %1

ProgramID: CSSFile
EXEFile: %ProgramFiles%\western civilisation\Style Master 4.02\Style Master 4.exe %1

ProgramID: CSSFile
EXEFile: %ProgramFiles%\Aptana\aptana.exe

ProgramID: CSSfile
EXEFile: %SystemRoot%\notepad.exe

ProgramID: CascadingStyleSheetsFile
EXEFile: %ProgramFiles%\Macromedia\Dreamweaver MX 2004\Dreamweaver.exe

ProgramID: CSSFile
EXEFile: %ProgramFiles%\Bradbury\TopStyle2\TSLite2.exe

ProgramID: EdHTMLFile_9
EXEFile: %ProgramFiles%\Binboy\EdHTMLv5.0\EdHTML.exe

ProgramID: WebDesigner.css.12.0
EXEFile: %ProgramFiles%\MICROS~3\WEBDES~1\EXPRWD.EXE

ProgramID: Notepad++_file
EXEFile: %ProgramFiles%\Notepad++\notepad++.exe

ProgramID: SharePointDesigner.css.12.0
EXEFile: %ProgramFiles%\MICROS~1\Office12\SPDESIGN.EXE

ProgramID: SharePointDesigner.css.12.0
EXEFile: %ProgramFiles%\MI1933~1\Office12\SPDESIGN.EXE

ProgramID: CSSfile
EXEFile: %ProgramFiles%\Aptana\Aptana Studio\AptanaStudio.exe

ProgramID: UltraEdit.css
EXEFile: %ProgramFiles%\IDM Computer Solutions\UltraEdit\Uedit32.exe


a css style sheet is a special file format by Microsoft and should only be edited and saved with the appropriate software.

How to solve problems with CSS files

  • Associate the CSS file extension with the correct application.
  • Update your software that should actually open style sheets. Because only the current version supports the latest CSS file format. Search, therefore, e.g. on the Microsoft manufacturer website after an available Visual Studio Code update.
  • To make sure that your CSS file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
  • Click here to open your .CSS file online - secure, fast, and no downloads needed.
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