ScDowngrade is a program that reads Supercell Flash files and saves them in an older version. Recently, Supercell has been updating its engine and its graphics tools so often that some useful tools do not have time to update or cannot do so, but using this program you can simply downgrade file and use it in an older tool
Tool is only available for Windows at the moment. Make sure you have most of MSVC redistributables installed
Download exe file from releases and place it in any folder convenient for you
Open a command prompt in folder with exe file and use a command like this:
ScDowngrade.exe input.sc output.sc {optional version: 0.5 or 1.0}