SageThumbs - Image Preview Thumbnails for Windows

SageThumbs is a powerful shell extension allowing to preview enormous amount of image formats directly in Windows Explorer by using Pierre-e Gougelet’s GFL 3.40 library an author of XnView Classic, XnView MP.

Download: https://www.cherubicsoft.com/en/projects/sagethumbs/

Works with: Windows XP/2003/Vista/2008/7/2012/8/8.1/10 32/64-bit

I've had enough opening TGA and DDS files on Paint.Net every time to check them out so back again with this handy tool.