Turn the tables in a Markdown file, a CSV or a JSON array into an Excel workbook (.xlsx) that finance, ops or a client can sort, filter and sum, with one sheet per table named from its heading, real numbers, percentages, currency and dates instead of text, a bold frozen header row with filters, sensible column widths, and formulas left inert unless asked for. Use when the user wants a spreadsheet from Markdown tables or data, says "put this in Excel", "convert the CSV to xlsx", "give finance a spreadsheet", or "turn this JSON into a sheet".
