Embed-Any-Documents

Embed Any Document WordPress plugin lets you upload and embed your documents easily in your WordPress website without any additional browser plugins like Flash or Acrobat reader. The plugin lets you choose between Google Docs Viewer and Microsoft Office Online to display your documents. Maintained by awsmin on GitHub, where it has earned 29 stars from the community.

It's actively developed around document-viewer, docx, embed-documents, and is a solid reference for anyone building with these tools.