Excel compatible
Reads and writes real .xlsx files — formulas, styles, merged cells, multiple sheets — with no loss in either direction.
LogiSheetsFrom Sheets to Systems
but it's also perfectly happy just opening your .xlsx.
Skip to content
Structured data
Blocks give regions a stable identity and an optional schema, so tables keep their shape and meaning even as the sheet changes around them.
Built to extend
One uniform API across Rust, Node and the browser, plus Crafts for embedding custom applications inside the sheet.