@simple-office-previewer/core

Framework-agnostic WASM/worker engine that renders .docx / .xlsx / .pptx to a self-contained HTML string, entirely in the browser via a .NET WebAssembly build of OfficeCLI.

Most people want @simple-office-previewer/angular (or, in future, @simple-office-previewer/react) instead of this package directly — this is the shared engine those wrappers are built on: worker lifecycle, WASM asset loading, and request/response correlation, with no framework-specific idioms (components, hooks, DI) attached.

import { OfficePreviewEngine } from '@simple-office-previewer/core';

const engine = new OfficePreviewEngine({ assetsBaseUrl: 'office-preview-assets/' });
const html = await engine.render(file); // file: File

The package ships its own WASM/worker assets under assets/ — a consuming framework wrapper is responsible for getting those into the final build output and pointing assetsBaseUrl at the resulting public path.

Source lives at github.com/IoannisMaras/simple-office-previewer.