Data Import & Export

How to Format and Export Python Dynamic Array Results in Excel

Maira Mehtab Sep 22, 2026 869 views

Question details

The user needs to know how to handle, format, and export dynamic array results generated by Python and pandas in Excel.

Product: Microsoft Excel
Device & OS: not provided
Scenario: Exporting or reusing Python-generated dynamic arrays as CSVs, formatted tables, or sending data to SharePoint and external systems.
Observed behavior: Python in Excel returns spilled dynamic arrays that require further formatting, referencing, or exporting for external system integration.

Before you start

Ensure you have an active Microsoft 365 subscription with access to the Python in Excel feature, and verify that your Python code executes successfully to generate the array.

Solution 1Recommended

Format and Reference Spilled Python Data

Use this method to reuse Python array outputs on other worksheets and structure them properly for further analysis.

Python outputs in Excel behave like native dynamic arrays. By referencing the spill range, you can easily pull the data into other cells without rewriting formulas.

Locate the spilled array

Identify the top-left cell of your Python output where the dynamic array begins (e.g., cell A1).

Reference the spill range

In another cell or worksheet, type the cell reference followed by a hashtag (e.g., =A1#) to reference the entire spilled array.

Format as a structured range

Ensure your Python code returns consistent columns, then use standard Excel cell formatting tools to structure the spilled range to make it visually readable.

Table Conversion limitation: Dynamic arrays cannot be directly formatted as a traditional Excel Table (ListObject) while retaining dynamic spilling behavior. You must use Power Query or copy-paste as values to convert them.

Solution 2

Export Python Results using Power Query

Ideal for exporting Python dynamic arrays to CSV or automating data transfers to SharePoint and other external systems.

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Frequently Asked Questions

Why can't I format a Python spilled array as a standard Excel Table?

Dynamic arrays, including those generated by Python, cannot be directly converted into standard Excel Tables (ListObjects) because tables do not support dynamic spill behavior. You must load the data through Power Query or copy-paste the values to create a formal table.

How do I reference a specific column from a Python dynamic array?

You can use the INDEX function alongside the spill reference. For example, to reference the second column of a spilled array starting in cell A1, use the formula =INDEX(A1#, , 2).

Where can I get advanced help for pandas and Python in Excel?

For complex integration queries and specific Python scripting issues, it is recommended to visit specialized programming forums like Stack Overflow. You can search for the 'pyexcel' tag or specific Python in Excel discussions for community support.

Excel & Data Problems