A daily updated filename extension database!

ICO file extension

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

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

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

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

✅ Windows Icon

The ICO file format is an image file format used for icons in Microsoft Windows.
Category: Graphic files
Application: -
Mime-type: image/x-icon
Magic number: -
Magic string: -
Sample: -
ICO aliases:
ICO related links:
ICO related extensions:
Windows Animated Cursor

Art Image

AT&T Group 4 Bitmap Image

Windows Bitmap Image

CALS Compressed Bitmap

CorelDraw Drawing

Computer Graphics Metafile

Corel Photo-Paint Image

Windows Custom Cursor

Dr. Halo Bitmap Image

Other types of files may also use the .ico file extension.

🔄 .ico converters

The following softwares are capable of converting .ico files to other formats:

XnView, Gimp, IrfanView

For example, using the softwares above, a .ico file can be converted into one of the following formats:

fit, kfx, max, skp, htm, ipt, j, dat, dic, ofx, dcm, geo, int, cpi, vpb

🚫 The .ico file extension is often given incorrectly!

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

cio, co, ic, ic0, ici, ick, icl, icp, ido, ifo, io, ioc, iso, ixo, jco

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Arabian Nights Game Data
IntelliCAD Custom Keyboard File
Cult3D Object
Cadence Input-output Connectors Data
WinAMP IO Plugin
LightCycler v4 Experiment Data
Sony Ericsson Icon Pack
Esterel Intermediate Code
µVision Intermediate C Source Code
CelLab Own Code

🔴 Can't open a .ico 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:


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 .ico 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 .ico file extension, write to us!

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