: Since it is a .7z file, you need a utility like 7-Zip or Unzip One .
The file appears to be a compressed archive containing a Spanish translation (indicated by "Esp") for the indie game Sacred Eyes , likely created by the user or group "EroGanso."
To "make a feature" or properly set this up as a game feature/mod, you will need to extract and install its contents correctly. SacrdEyes_Esp (EroGanso).7z
You can use 7-Zip on any computer, including a computer in a commercial organization. You don't need to register or pay for 7-Zip. Create 7-Zip SFX executable - Super User
Select the mod files, right-click, and choose . : Since it is a
Select the option. This allows other users to "install" the feature simply by running an .exe file even if they don't have 7-Zip installed.
Right-click the file and select to keep the files organized. You don't need to register or pay for 7-Zip
: Open the game. If the translation doesn't apply automatically, check the in-game Options or Language menu to see if "Español" is now a selectable feature. Creating Your Own Feature (Repackaging)