This example transforms tabular CSV data into a hierarchical object structure based on empty cells in organizational level columns. It uses plain JavaScript with dynamic object construction via `eval` and the `JSON.stringify` method to assemble nested children arrays. The code processes each row by iterating through org-level headers, assigning data headers to leaf nodes, and discarding parent placeholders. Finally, it triggers a file download of the resulting hierarchy, demonstrating a manual approach to building tree data without external visualization libraries.