Having problems opening an ICO file?

We have programs that can open or convert your ICO files.

Opening ICO files

Did your computer fail to open an ICO file? We explain what ICO files are and recommend software that we know can open or convert your ICO files.

What is an ICO file?

Files that contain the .ico file extension are image container files that store icons that are used by different Windows applications, such as the Windows folder icons, file icons and program icons that appear on a user's desktop.

The ICO file is not an image file itself. It is a container file that stores two bitmaps and the image mask that is used to create the icon that is saved in the file. ICO files can be modified to create custom icons for a Windows interface and are sometimes downloaded with Windows desktop themes.

ICO files are similar to CUR files, but they have a different identification byte in the file header.

Try a universal file viewer

Try a universal file viewer like Free File Viewer. It can open over 200 different types of files - and most likely yours too. Download Free File Viewer here.

About File Extension ICO

File.org aims to be the go-to resource for file type- and related software information. We spend countless hours researching various file formats and software that can open, convert, create or otherwise work with those files.

If you have additional information about the ICO file format or software that uses files with the ICO suffix, please do get in touch - we would love hearing from you.