What is .UDS file extension?
File created by Sierra Generations, a program that stores family tree data; contains names, dates, ancestors, and descendants.
Sierra Generations is no longer a supported program. UDS files can be converted using services provided by TWR Computing.
You can see a list of software programs here on www.easyfileopener.org that can open this file type so that you don’t need to search for it on the web. You can then open your file with this extension using a software listed below.