The calc engine package is one of modules for GrapeCity SpreadJS.
For a detailed listing of SpreadJS sub-libraries and plug-ins, please see Using SpreadJS Libraries.
npm install @grapecity/spread-calc-engine
Visit the SpreadJS home page to get more information about the library: https://www.grapecity.com/spreadjs
You can ask any question about SpreadJS using the SpreadJS Forum.