odilitime Board owner 05/02/2016 (Mon) 23:31:17 No. 3681 del
I owe you a response. According to http://filext.com/file-extension/WPG
File type: Branded .PNG File

WPG are the same thing as a .PNG file. So just by renaming them to PNG, they'll work in a browser.

However recently I see that it also could be a WildTangent plug in too. But isn't that a dead tech.

The Mime types used with this association are: application/wpg, application/x-wpg, image/wpg, image/x-wpg, image/x-wordperfect-graphics, application/x-wpg-viewer, zz-application/zz-winassoc-wpg.
Mime type: application/x-wildtangent-web-driver, application/x-wildtangent-web-driver20

So my question now is why do you want this? How are you using it? Which mime type is right?