This plugin converts png to dds and packs them in a tpf.
Download the python script into your substance painter plugin folder. You can go to the substance painter plugin folder by clicking on Python tab in the bar and then the Plugins Folder
Enable the plugin and set the config paths
Download Microsoft Texconv https://github.com/microsoft/DirectXTex/releases
Download Yabber https://github.com/JKAnderson/Yabber/releases