Property files contain a collection of properties that define variables used in SimCity 2013. These have a key (uint) and a value (of a few possible types). Property files are abbreviated "PROP" in SimCityPak.
- Key - Contains a reference to a TGI index or just an Instance ID. Type and Group values are mostly zero when the type is determined by the Property ID in-game.
- Transform - Transform matrix for positioning of 3D objects
- Bounding Box - Bounding box that defines the dimensions of an object
- Color - ARGB or RGB color values
- The SimCity 4 equivalent of Property files are Exemplars.