IronCalc
Work with spreadsheets in a browser or embed a Rust calculation engine.
IronCalc combines a Rust spreadsheet engine with tools for reading and writing XLSX files. It supports evaluating formulas and manipulating workbook data, with bindings for use from other programming languages.
An early web application lets users try the spreadsheet interface in a browser. The Rust engine is the core component; the surrounding web interface is a separate part of this mixed-language project, which remains a work in progress.