: Often refers to "Sims2Sisters" or similar content creator groups popular in the mid-2000s. 7-18 : Likely a date code or set number (July 18th).
: The primary data files containing the 3D meshes, textures, and coding for the item to appear in-game. SSP-7-18-REM_tubwheat.zip
: Often included by the creator to specify installation paths (usually Documents/EA Games/The Sims 2/Downloads ) and any "mesh" requirements. : Often refers to "Sims2Sisters" or similar content