IronCalc is a new, modern, work-in-progress spreadsheet engine and set of tools to work with spreadsheets in diverse settings. IronCalc is a lightweight, open-source computational engine designed for performing mathematical operations, formula calculations, and data-driven tasks.
A standalone, portable Ada package for producing Excel spreadsheets
Excel_Out is a standalone, portable Ada package for writing Excel spreadsheets with basic formattings and formulas, easily and programmatically.
Enables the automatic production of reports.
No interaction needed with Excel or MS Office.
More information on: http://excel-writer.sf.net
Alire crate: https://alire.ada.dev/crates/excel_writer
Mirror: https://github.com/zertovitch/excel-writer
Expr4J aims to provide a general purpose expression parser, which is also compatible with Microsoft Excel. It will provide an implementation of the built in functions in MS Excel as well as a calculation engine.