ICO is an icon file format for Windows.
It is a type of icon file format for Windows, where icon files can store single pattern, multi-size, and multi-color palette icon files. An icon is actually a collection of multiple images in different formats and also contains a certain transparent area. Icons are computer graphics with a clear referential meaning. A desktop icon is a software logo and an icon in an interface is a functional logo.
Expanded Information
Application
.ico can be used as the first section of the browser to display icons, but also in the favorites of the contents of the collection of the first section of the display of the small icon.
Second, the production process
As long as you have a jpg, gif, png pictures can be converted to ico online, or first use PS and other image processing software to make the picture into the desired appearance, that is, around the transparent, and then saved as "PNG" format.
Open this software, file - open, open the "png" format of the picture, and then right in the middle of the picture above the first tool (is a "I" shape, put the mouse up, written "Create WINDOWS from Image") click on the three options appear. icon) click on the three options appear "other image formats, OK, cancel) select OK, and then save ctrl + s on the line.
Baidu Encyclopedia-.ico