- Extension
- .ico
- .art
- Format
- Binary
- Binary
- Category
- Raster Image
- Raster Image
- Developer
- Microsoft
- Johnson-Grace / AOL
- Description
- 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.
- A Johnson-Grace compressed image used by the AOL client (the file starts with JG). It shares the .art extension with PFS Art Publisher and other images, and no converter here reads it yet.
- MIME Type
- image/x-icon
- application/octet-stream
