NWSRFS User Manual Documentation - Adobe Acrobat Format
The NWSRFS User Manual Adobe Acrobat Format Index links to
Adobe Acrobat files and must be viewed with an application
that can read files of this format.
You need to use a browser which can an launch application to display the files.
Use your browser options/preferences to set the mime type/subtype.
Set it to start the application (such as Adobe Acrobat) when the browser encounters
files with extensions of wpd.