File Extension Library


.ICO File Extension

  • Category: System Files
  • Format: Binary

What are .ICO files and how to open them?

Can't open .ICO file? Are you wondering what it contains? On our site we will explain to you what this file is, what it is used for and what software opens the .ICO file.

What is a .ICO file extension?

.ICO file extension has been classified as System Files. The format of .ICO file is Binary

.ICO is Icon File

An ICO file is an image format used to store icons for Windows programs, files, and folders. It contains two bitmaps: 1) the AND bitmap - the image mask (which determines what part of the icon is transparent) and 2) the XOR bitmap - contains the icon which is mapped onto the image mask. ICO files can be modified to create custom icons.

ICO file open in File Viewer Plus 2

The "favicon.ico" file is used to store a small website logo that appears in the address bar of a Web browser. If a website has a favion.ico image, it will appear to the left of the Web address when any page of the website is loaded. The favicon.ico image file must be 16x16 pixels and stored in the root directory of the website in order for the Web browser to recognize it.

An ICO file is similar to a Windows cursor (.CUR) file, but has a different identification byte in the header.

Common ICO Filenames

favicon.ico - A 16x16 pixel .PNG file located in the root directory of a website and containing a small icon graphic to be displayed in the Web browser's address bar.

List of all softwares that can open the Icon File
Windows
File Viewer Plus
Microsoft Windows Photos
Microsoft Paint
Microsoft Paint 3D
IcoFX
Axialis IconWorkshop
Newera IconCool Editor
ACD Systems ACDSee 2018
SibCode Sib Icon Editor
Program4Pc PC Icon Editor
IconEdit2
Inkscape
IvanView
GIMP
IrfanView
FastStone Image Viewer
Mac
Apple Preview
Lemkesoft GraphicConverter
Iconographer
Inkscape
GIMP
Snap Converter
Linux
Inkscape
GIMP
Android
File Viewer for Android

How to fix problems with .ICO files

  1. You need to update the application that you normally use to open .ICO files. Only the latest version of the software supports the current .ICO file format
  2. You need to check the .ICO file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)