An elderly friend of mine sent me two files to see if I can open them. One is a CHT file and the other a UDT file, both of which he created several years ago with an unknown genealogy program. From an Internet search these file formats appear to be an old format for "Sierra Generations Family Tree Chart".
Does anyone on this forum know how to open these files and convert them to another format that is more generally usable?
Thanks in advance for any assistance you can give!