- Extension
- .ico
- .arn
- Format
- Binary
- Binary
- Category
- Raster Image
- Raster Image
- Developer
- Microsoft
- American Association of Variable Star Observers (AAVSO)
- 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.
- ARN (Astronomical Research Network) is a file type used to store astronomical data and information. It is typically used by professional astronomers and research institutions to store data related to celestial bodies, space phenomena, and other astronomical topics. ARN files are commonly used for research and educational purposes.
- MIME Type
- image/x-icon
- application/octet-stream
