Ctrl+Shift+V : Paste the copied text or cells content to cells without the formatting, i.e. font face, font size, font color, background color, hyperlink, etc.
Paste Value or Text (which you copied from website) to a Cell or a range of Cells without the original format.
You can copy text from web site or from other Excel's cells. When you press Ctrl+Shift+V, you can paste the copied content to the selected cells. All formats of the original content will be stripped off.