Convert xcf to flif Online: xcf2flif
You can use Tom's Editor to easily convert images from
GIMP image .XCF to Free Lossless Image Format .FLIF.
Tom's Editor is a free, online image manipulation and converter program.
Go to Tom's Editor
XCF
GIMP image is an image format with extension XCF.
FLIF
Free Lossless Image Format is an image format with extension FLIF.