Here's a afthumbs.py Python3 script which can be used to extract PNG thumbnail images out of Affinity files. The afthumbs.py script can be called either by passing over a Affinity file as argument directly ... ... or in an interacting mode just like this ... If the script does find a PNG thumb image it will extract it and write it into a pngs/ directory! Here's the afthumbs.py Python3 script for download: afthumbs.py Have fun!