While Excel offers 3D chart options, it's important to understand their limitations for presenting different viewpoints. Here's why:

* Limited Viewpoint Control: Unlike true 3D graphics, Excel's 3D charts only allow rotation around horizontal and vertical axes, not around the depth axis (Z-axis). This restricts the ability to get a truly different viewpoint from the side or above.
* Clarity Issues: Complex 3D charts can be difficult to read due to perspective distortion and overlapping elements.

However, if you're set on using 3D charts for emphasizing trends or highlighting specific data points, here's how to adjust the perspective:

1. Create your 3D chart: Choose the desired chart type (e.g., column, bar, line) and format your data.
2. Select the chart: Click on the chart to activate it.
3. Format Chart Area: Navigate to the "Chart Tools" tab (depending on your Excel version, this might be under the "Format" tab). In the "Chart Design" group, click "Format Chart Area."
4. 3D Rotation Options: In the format pane that opens, locate the "3-D Rotation" section. Here you can:
- X Rotation & Y Rotation: Enter values in these boxes to rotate the chart around the horizontal (X) and vertical (Y) axes. Positive values rotate clockwise, negative values counter-clockwise.
- Perspective: Adjust the slider or enter a value in the "Perspective" box to control the overall 3D view. Higher values create a more dramatic perspective effect, but can also make the chart harder to interpret.

Alternatives for Different Viewpoints:

Consider these options for presenting data from different perspectives:

* Multiple 2D Charts: Create separate 2D charts of the same data type with different angles (e.g., stacked bar chart, line chart).
* Chart Slicers (PivotTables): If you're using PivotTables, slicers allow interactive exploration of data from various angles.
* Multiple Worksheets: For complex data analysis, present different data breakdowns or visualizations on separate worksheets.

In conclusion, while 3D charts can add visual interest, they might not be the most effective way to present data from significantly different viewpoints. Consider alternative approaches for better clarity and communication of your insights.