Creating a tree graph, also known as a hierarchical diagram, in Excel can be incredibly useful for organizing and representing data with clear structures. Whether you're planning a project, visualizing a company's organizational structure, or wanting to display data in a user-friendly manner, Excel's easy-to-use features allow you to create a tree graph with relative simplicity. Let's dive into the steps, using Excel 2016, to create a well-organized tree graph.

Before we begin, you might want to have your data prepared. For our example, let's assume we have a roster of employees with their respective departments and positions.

Preparing Your Data for the Tree Graph
In order to create a tree graph, your data needs to be structured with clear hierarchical levels. Ensure you have a logical order that reflects your desired tree structure. For instance, a CEO at the top, followed by the department heads, then the employees in each department, and so on.

You might have the data in a different format - no worries! You can use Excel's sorting and filtering functions to rearrange your information. To do this, simply use the 'Sort & Filter' command in the 'Home' tab after selecting your data.
Adding Hierarchical Indentation

Once your data is sorted correctly, you'll want to provide visual cues to distinguish the hierarchy. This will involve adding indentation. In Excel, you can do this by utilizing the 'Tab' key to create this artificially.
To demonstrate this, you might start with 'CEO' on the first line, then press 'Tab' before typing the department heads. Pressing the 'Tab' key again can then be used to add the employees on the next level of the hierarchy.
Choosing the Right Chart Type

Now that your data is organized hierarchically, it's time to create your tree graph. In the 'Insert' tab, click on the 'Recommended Charts' icon. Excel uses an advanced algorithm to determine which chart types best represent your data.
For a tree graph, look for the 'Organization Chart' or 'Hierarchy' chart type. The chart will automatically use your data's indentation to create the tree structure.
Formatting and Customizing Your Tree Graph

Once your chart is inserted, you'll likely want to customize it to fit your needs. You can adjust the layout, fonts, colors, and other visual elements to reflect your data more effectively. To do this, you can use the 'Design' and 'Format' tabs in the 'Chart Tools' that appear when you select your chart.
The 'Switch Row/Column' tool in the 'Design' tab can be used to rotate your chart if your data makes more sense in a vertical orientation. You may also want to add a title and adjust the axis to better represent your data.










Adding Legends and Labels
Legends and labels can enhance your chart's readability and understanding. To insert a legend, under the 'Add Chart Element' list, choose the 'Legend' option. With this, you can customize your legend's position and style.
Adding labels can be done by right-clicking on your chart and clicking 'Add Data Labels'. After that, you can adjust the labels' position, font, and other visual features.
Updating Your Chart
If your source data changes, you'll want to update your chart to reflect these changes. To do this, simply select your chart, then right-click and choose 'Select Data'. Click on the icon that looks like a chart and a table, then click 'OK'. Excel will automatically update your chart with the newest data.
Creating a tree graph in Excel can significantly improve the visual representation of structured data. It's an ideal tool for visualization, reporting, and planning, helping you and your team to understand complex data quickly and efficiently. Happy graphing!