agent-xlsx XLSX CLI for AI agents. JSON to stdout by default (raw text for ). Polars+fastexcel for data reads (7-10x faster than openpyxl), openpyxl for metadata/writes, three rendering engines for visual capture (Aspose → Excel → LibreOffice), oletools for VBA. Running If is not already installed, use for zero-install execution: All examples below use directly — prefix with if not globally installed. This file is a quick-start summary. Before constructing any command beyond the basic examples shown here, you must read commands.md for the full flag reference (types, defaults, edge cases, outp…