Add a Solitaire button to any toolbar, a quick game is just a click away!
On the Main Menu Bar
3. In the newly opened dialog box Select Tools in the Categories list
4. Scroll down the Commands list and you will see a deck of cards
5. Click and drag the Card Deck icon to the toolbar of your liking.
Sidenote: I’m using Excel 2003 and have Windows Default games installed, I’m not sure of the availability on other setups.