Convert qrt to flif Online: qrt2flif

You can use Tom's Editor to easily convert images from
DKB Trace / Qrt raytrace .QRT to Free Lossless Image Format .FLIF.
Tom's Editor is a free, online image manipulation and converter program.

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QRT

DKB Trace / Qrt raytrace is an image format with extension QRT.

FLIF

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