As you know, it's easy to draw 2D (with 2 axis) graphs in Excel. You can also draw a 3D chart in Excel, with 3 axes: X, Y and Z.
How to draw?
The procedure is very similar to how you draw a 2 dimension graph. Suppose you have data on quarterly sales in millions for the last 10 years, something like the following.
See the data carefully. You have 4 x 10 data fields. Just follow these steps:
Insert 3D chart
Select the data, including labels, in the Insert ribbon tab go to the column and select the 3-D chart.
And that's it! You've just inserted a 3 axis chart.
Right-click on bars and select 3-D Rotation to adjust the grade visibility.
Note: For learning purposes, use the table shown above (numbers in an increasing pattern). Otherwise, the result will be fairly unreadable since 3D charts just don't work on a 2D surface, unless you actually rotate them and get things into perspective.
Further reading: 4 axis chart Chart with multiple series Chart with subcategories