Convert atk to flif Online: atk2flif

You can use Tom's Editor to easily convert images from
Andrew Toolkit raster object .ATK to Free Lossless Image Format .FLIF.
Tom's Editor is a free, online image manipulation and converter program.

Go to Tom's Editor

ATK

Andrew Toolkit raster object is an image format with extension ATK.

FLIF

Free Lossless Image Format is an image format with extension FLIF.