- Extension
- .dat
- .ico
- Format
- Binary
- Binary
- Category
- Other
- Raster Image
- Developer
- Microsoft
- Description
- A raw zlib (RFC 1950) compressed stream: a 0x78 header byte (commonly 78 9C), a deflate body and an Adler-32 checksum at the end. Filestar inflates the stream and then converts whatever the decompressed data turns out to be - often an image or a document.
- 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.
- MIME Type
- application/zlib
- image/x-icon
