How do you install a mod?

[Burnsaber]

Originally Posted by name thief

In the files, should I run something, like the DM file, it doesn't know what program it was written with.

You don't need to open the mod .dm files in order to play with them. Just drop them in the /mods folder and start the game (once the game has started, main menu -> preferences -> mod preferences).

If you want to edit the .dm files, you can open them with notepad. They're just text files.