How can I move favorites bookmark from my old xp computer to my new windows 10 computer?

Dude, when you want advice about a computer program you have to say what operating system and what program.

All browsers have a bookmark menu where you can export and import bookmarks from the same or another computer, and usually from one browser to another. I like to export in HTML format so I can load the page in my browser and search for something when I don't remember where I stored it.

Any program you use, click on the menus to see what options you have and where they are located. You need to know these things. For example if you use Windows, everybody assumes you know where your control panel is located.