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.ICO File Extension

TIP: Run a free scan for .ICO file extension errors.

File Type Icon File
Popularity 4 stars  Common
Category System Files
File Description Image format used for storing icons for Windows programs, files, and folders; 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.

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.
Program(s) that open ico files
Mac OS Mac OS Adobe Photoshop CS4
Newera Software IconCool Editor
Lemkesoft GraphicConverter
GIMP
Windows Windows Adobe Photoshop CS4
ACDSee Photo Manager 2009
IconEdit2
IvanView
SibCode Sib Icon Editor
Program4Pc PC Icon Editor
GIMP
Linux Linux GIMP
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Updated 7/2/2009 Star Fix file extension .ICO errors.
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