excel4node
Library to create Formatted Excel Files.
excelize-wasm
A pure WebAssembly / Javascript port of Go Excelize library that allow you to write to and read from XLAM / XLSM / XLSX / XLTM / XLTX files
docxml
TypeScript (component) library for building and parsing a DOCX file
node-easy-docx
NodeJs library to parse docx file content into JSON format.