How Do You Paste Copied Content without the Formatting Using a Mac?

Problem scenario
You have a Mac and want to copy heavily-formatted text from a web page or Excel spreadsheet into TextEdit. But you do not want the formatting to come with it. How do you do this?

Solution

1. Copy it as you normally would.
2. If you are using a Microsoft keyboard, use Alt-Windows-Shift-v to paste it. If you are using a Macintosh keyboard, use Option-Command-Shift-v.