AI model: Google Gemma 4, open

Google just dropped Gemma 4... (WOAH) - YouTube by Matthew Berman

Gemma 4 — Google DeepMind

Modular: Day Zero Launch: Fastest Performance for Gemma 4 on NVIDIA and AMD

generate Excel files, with charts

exceljs - npm

Read, manipulate and write spreadsheet data and styles to XLSX and JSON.

Creating an Excel File Download with the ExcelJS NPM Package | by kelsola | Medium

objectum/xlsx-chart: Node.js excel chart builder @GitHub
producing "native vector charts" in generated Excel files,
but not converting SVG to it.