Lets you embed MS Office, PDF, and many other file types in a web page using the Google Docs Viewer (no Flash or PDF browser plug-ins required).
Google Doc Embedder lets you embed several types of files into your WordPress pages using the Google Docs Viewer – allowing inline viewing (and optional downloading) of the following file types, with no Flash or PDF browser plug-ins required:

- Adobe PDF
- Microsoft Word (DOC/DOCX)
- Microsoft PowerPoint (PPT/PPTX/PPS)
- Microsoft Excel (XLS/XLSX)
- TIFF Images
- Apple Pages (PAGES)
- Adobe Illustrator (AI)
- Adobe Photoshop (PSD)
- Autodesk AutoCad (DXF)
- Scalable Vector Graphics (SVG)
- PostScript (EPS/PS)
- TrueType (TTF)
- XML Paper Specification (XPS)
- Archive Files (ZIP/RAR)
Similar to services like Scribd, Google Doc Embedder will allow you to embed these files directly into your page or post, not requiring the user to have Microsoft Word, Adobe Reader, PowerPoint, or other software installed to view the contents. Unlike Scribd, the files do not need to be uploaded to any service first – including Google Documents – but can exist anywhere publicly accessible on your site or the internet.
Note: Use of this plug-in implies your agreement with Google’s published Terms of Service.
Installation
- Upload the entire google-document-embedder folder to the /wp-content/plugins/ directory.
- Activate the plugin through the ‘Plugins’ menu in WordPress.
- Done.
Upload the documents to your site using the media upload facility built into WordPress, via FTP, or link to documents on another (public) site. Use the Google Doc Embedder button in the Visual editor to build the appropriate shortcode.
For basic manual instructions, please see the FAQ. For advanced usage (including codes not exposed in the editor), see the web site.
Go to “GDE Settings” (under “Settings” in the admin panel) to change defaults, or override individually using the shortcode syntax in the FAQ.
http://wordpress.org/extend/plugins/google-document-embedder/