What format is favicon ICO?

Related questions

1. How do I increase the size of my favicon?
2. What are the dimensions of a favicon?
3. How do I make a favicon?
4. How do I change the size of the bookmark icons in Chrome?
5. Where does a favicon appear?
6. What is favicon ico file?
7. What size should a favicon be?
8. What is an ICO file?
9. What file type is a favicon?
10. Can I use SVG favicon?

Tags

1. #chosen
2. #format
3. #standard
4. #16x16
5. #image
6. #colors
7. #using
8. #however
9. #32x32
10. #pixels
11. #either