As of XnView version 0.96 64bits (Mar 20 2020) with Libformat version 7.40 TIFF files compressed sing the LZMA compression method cannot be viewed in XnView, nor their metadata can be viewed or edited.
The files I tested were compressed using tiffcp from tiff-tools which implements libtiff.
See the attached example, produced using the command:
Code: Select all
tiffcp -c lzma:2:p9 ~/Pictures/lena_std.tif /tmp/Our-Lady-of-CG.tiff