Windows
Hold Alt and type 0161 on the numeric keypad.
Accents
Copy the character, or use the shortcut that matches your keyboard and app.
All N accentsHold Alt and type 0161 on the numeric keypad.
Character Viewer → inverted exclamation
Type 00A1 then Alt + X
Insert → Special characters → inverted exclamation
Click the keycap, then paste with Ctrl+V or Cmd+V.
Num Lock on, hold Alt, type 0161, release Alt.
Use the Unicode, HTML, CSS, or JS value below in documents and stylesheets.
U+00A1¡¡\00A1\u{00A1}Alt + 0161