A family of Microsoft word processing software products for creating web, email, and print documents.
The arroba or @ symbol is on different keys, depending on the keyboard layout you use. On a US English keyboard or a Portuguese (Brazil) keyboard, it is the Shift character on the 2 key on the top row. On a Spanish keyboard or a Portuguese (Portugal) keyboard, it is the AltGr key and the 2 key. For other keyboard layouts, consult the interactive pictures at https://docs.microsoft.com/en-us/globalization/windows-keyboard-layouts#