What is a SMSEC File Type?
You can explore the world by finding materials to improve your ship and repel the attacks of your enemies. You navigate through areas that may contain space stations, d' other ships, asteroids, planets, stars, or nothing at all.
These are the smallest spatial units in the StarMade universe. It's configurable but about 5,000 meters on either side. These sectors are contained in 16x16x16 zones known as systems in the game.
StarMade has a number of different types of sectors, each with different challenges.
StarMade allows you to export and import sectors for sharing purposes. When you export a sector an SMSEC file is created to store all the information in the sector. This file is intended to be opened only in StarMade, but is compressed into Zip format, allowing you to manually extract its contents with a utility such as 7-Zip or WinZip.