XML to CSVConvert XML documents to CSV format by extracting child element values.

The converter uses the browser's built-in DOMParser to parse the XML input, which provides strict XML validation and proper namespace handling. If the XML is malformed, the parser returns an error document which the tool detects and reports to the user. The conversion process works in two passes: first, it iterates over all direct children of the root element to discover all unique tag names, building the complete set of column headers. Second, it iterates again to extract text content from each child element, mapping tag names to column positions. This approach handles XML where different row elements have different sets of child elements — missing elements result in empty CSV cells. The text content extraction uses the textContent property, which concatenates all nested text nodes. CSV output values are escaped following RFC 4180: fields containing commas, double quotes, or newlines are wrapped in double quotes, with internal quotes doubled.