{spreadsheet}

A spreadsheet editor whose file is a compact, readable text document: rows are pipe-delimited lines, formulas use Excel's grammar, and merges, number formats, conditional formatting and cell comments are one-line rules keyed by A1 ranges. Edit in the grid (sort, filter, insert rows, merge, format) or in the text — both are the same document, with git-style history inside.

• Works 100% offline — no server, no account, no sync
• A real grid: formulas, merged cells, formatting, conditional rules, comments, sort & filter
• Exports a real .xlsx (styles and rules included), CSV, HTML and PDF