What is .ROS file extension?
File created by BattleScribe Roster Editor, a program used for building army lists for table top war games, such as Warhammer 40,000 or Warhammer Fantasy; saves a list of army units and their abilities, organized into categories.
Once the points limits and army selections are validated in the software, you can export them and then use them for playing a table top war game.
You can see a list of software programs here on 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.