Fast Excel Formula Parser and Evaluator

fast-formula-parser is a high-performance JavaScript library designed for parsing and evaluating Microsoft Excel formulas. It uses an LL(1) parser to offer fast and reliable formula processing, supporting over 280 standard Excel functions. The library is currently at version 1.0.19 and maintains an active release cadence, frequently adding new functions, fixing bugs, and improving existing features. It differentiates itself through its speed, extensive function coverage, and a grammar engineered to eliminate ambiguities, making it an robust choice for integrating Excel-like formula capabilities into web or Node.js applications. It also provides hooks for custom functions, including asynchronous ones, and supports formula dependency parsing for building complex calculation graphs.