There are a few ways to accomplish this. One way is to hold down the ALT key while typing in the following, using your numerical keypad:
Small letters and common punctation marks:
| Alt + 160 |
á |
| Alt + 130 |
é |
| Alt + 161 |
í |
| Alt + 162 |
ó |
| Alt + 163 |
ú |
| Alt + 164 |
ñ |
| Alt + 0252 |
ü |
| Alt + 168 |
¿ |
| Alt + 173 |
¡ |
If the above doesn't work on your keyboard, try this:
| Alt + 0225 |
á |
| Alt + 0233 |
é |
| Alt + 0237 |
í |
| Alt + 0243 |
ó |
| Alt + 0250 |
ú |
| Alt + 0191 |
¿ |
| Alt + 0161 |
¡ |
Capital letters:
| Alt + 0193 |
Á |
| Alt + 144 |
É |
| Alt + 0205 |
Í |
| Alt + 0211 |
Ó |
| Alt + 0218 |
Ú |
| Alt + 165 |
Ñ |
| Alt + 0193 |
Á |
