Unfortunately, Excel doesn't have a direct way to export PivotTable data to a format like CSV while maintaining the table's structure and functionalities like subtotals. However, you can achieve this outcome with a two-step process:

1. Convert PivotTable to Values:
* Right-click anywhere within your PivotTable.
* Select "Convert to Range" from the context menu.
* This removes the PivotTable functionality and transforms the data into a static table with values.

2. Save the Converted Table as CSV:
* Select the entire converted table (including headers).
* Go to the "File" tab.
* Click on "Save As" and choose a location for your file.
* In the "Save as type" dropdown menu, select "Comma Separated Values (.csv)".

By following these steps, you'll export the data previously displayed in your PivotTable as a CSV file. Keep in mind that this method loses the interactive features and calculations associated with PivotTables. It simply captures the final displayed values.

Here are some additional points to consider:

* If you need to preserve PivotTable functionality and layout, consider exporting to another Excel file (XLSX) format.
* Some third-party add-ins for Excel might offer functionalities to export PivotTables directly to CSV while retaining some structure. Explore these options if your workflow heavily relies on CSV exports with PivotTable data.