Fuxin Office SDK Overview

office-sdk is an embeddable Office document component SDK for web pages. It loads and renders Office documents directly in the browser.

Integrators can load the SDK in their own pages, choose a DOM container as the mount target, then open and render files through a unified API.

Use Cases

Fuxin Office SDK is suitable for:

• Embedding an Office document preview area in a host application
• Opening a local file for viewing immediately after file selection
• Quickly embedding Word, Excel, and PowerPoint document components into existing pages
• Integrating a unified document viewing entry point into an existing frontend system

Audience

This documentation is intended for:

• Developers responsible for frontend page integration
• Project teams that need Office document capabilities in web applications
• Engineers responsible for customer delivery and static asset deployment

Core Capabilities

Fuxin Office SDK currently provides these core capabilities:

• Open local Office files or files from browser-accessible URLs
• Create new DOCX, XLSX, or PPTX files
• Detect the document type and load the matching component automatically
• Mount the document instance into a specified DOM node for rendering
• Destroy the instance and release resources when a page changes or a component is unmounted
• Control the top toolbar and bottom status bar with uiOptions
• Open documents in read-only mode with mode.readOnly
• Specify the document language with mode.lang
• Expose a public application API object for further integration

Supported File Types

The main document-opening flow currently supports:

• Word: .doc, .docx
• Excel: .xls, .xlsx
• PowerPoint: .pptx

Integration Model

Fuxin Office SDK is integrated as an embedded static asset package. A typical flow is:

1. Obtain and deploy the office-sdk/lib/ static asset directory
2. Load style.css in the page
3. Load UI.js from the static path
4. Call openfile(...) to open a file, or createfile(...) to create one
5. Mount the returned widget to the target container and render it
6. Call close() when the instance is no longer needed

Runtime Recommendations

Use Fuxin Office SDK in a modern web application that supports static asset deployment and ES Modules.

Recommended environment:

• A modern browser, with the latest stable Chrome or Chromium Edge as the primary supported runtime
• Frontend runtime support for ES Modules, dynamic import(), Web Workers, SharedWorkers, WebAssembly, IndexedDB, Promise, Blob, and ArrayBuffer
• A page application that can mount DOM nodes normally
• A static asset service that can deploy the complete office-sdk/lib/ directory

Browser Compatibility

The primary supported runtime for Fuxin Office SDK is the latest stable Chrome or Chromium Edge. Compatibility is capability-based rather than determined only by a browser version:

Runtime	Guidance
Chrome / Chromium Edge	Primary supported environment. Use the latest stable release and verify SharedWorker, IndexedDB, and WebAssembly.
Firefox / Safari	Perform dedicated testing on the target version, especially for SharedWorker and IndexedDB under the active privacy policy.
iOS Safari / iOS WKWebView	Validate in the actual host container. Confirm that WebView configuration, third-party context, and storage policy allow SharedWorker and IndexedDB.
Android WebView	Validate the actual system WebView version and host configuration.

Internet Explorer, legacy EdgeHTML Edge, Android Browser, and browsers or WebViews without ES Modules, dynamic import(), SharedWorker, IndexedDB, or WebAssembly are not supported. When private browsing, enterprise policy, or security containers disable a capability even though its API is present, treat the environment as unsupported.

PDF Export Requirements

Document.exportPdf(...) also requires a secure context (normally HTTPS or localhost), window.queryLocalFonts, and permission to access local fonts. If these requirements are not met, the current implementation does not perform the PDF export.