.ico — Icon File
A container for one or more small raster images at different resolutions, used for application and website (favicon) icons on Windows.
Media files are generally low-risk to open with trusted, up-to-date software. Keep your viewer/player updated, since any file format can theoretically be crafted to exploit a buggy app.
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Frequently asked questions
What is a .ico file?
A container for one or more small raster images at different resolutions, used for application and website (favicon) icons on Windows.
Can I edit a .ico file?
Yes — .ico files are commonly editable with software such as GIMP.
Does having a .ico extension mean the file is safe?
No single extension can guarantee that. Media files are generally low-risk to open with trusted, up-to-date software. Keep your viewer/player updated, since any file format can theoretically be crafted to exploit a buggy app. Always consider where the file came from, not just its name.