C:\Program Files (x86)\Steam\steamapps\common\Tennis Elbow 4\Mods (for Steam users).
Documents\Tennis Elbow 4\Mods (for some configuration setups). File: Tennis.Elbow.4.zip ...
Move the extracted folders into your game's directory. This is typically located in: File: Tennis.Elbow.4.zip ...
If your intent is to "make" (create) a mod or paper-based layout for the game, the developers provide official Software Development Kits (SDKs) on the Mana Games Modding Forum: File: Tennis.Elbow.4.zip ...
Based on community discussions on the Mana Games Forum , here is how to handle these types of files: