A daily updated filename extension database!

CSS1 file extension

The table below provides useful information about the .css1 file extension. It answers questions such as:

  • What is the .css1 file?
  • What program do I need to open a .css1 file?
  • How can the .css1 file be opened, edited or printed?
  • How can I convert .css1 files to another format?

Table of Contents

We hope you find this page helpful and a valuable resource!

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

✅ CSS Backup

.css1
Description:
CSS1 file is a CSS Backup. Cascading Style Sheets (CSS) is a simple mechanism for adding style (e.g. fonts, colors, spacing) to Web documents.
Category: Data files
Application: Mozilla Firefox
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
CSS1 aliases:
-
CSS1 related links:
-
CSS1 related extensions:
Active Server Page

Hypertext Markup Language Document

PHP Script

Cascading Style Sheets

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 .css1 file extension.

🚫 The .css1 file extension is often given incorrectly!

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

cs1, css, ss1

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Sinar CaptureShop RAW Image
Cascading Style Sheets
Scream Center for Seismic Studies Data
Cygnus MK Data Logger Single Record

🔴 Can't open a .css1 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 cannot open this file:

example.css1

To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .css1 file association, check the FAQ.

🔴 Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .css1 file extension, write to us!

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