CFG
Anyways it has a simple byte by byte format for the most part. Here's what we know. (Much thanks to Tropod for all this great info)
1262 Bytes - Unknown BYTE - Auto Edge Reconciliation? 2575 Bytes - Unknown QWORD - Current Region Coordinates BYTE - Show City Boundries? BYTE - Show City Names? BYTE - Current Region Map View 1 Byte - Unknown BYTE - Auto Go to Disaster? BYTE - Edge Scrolling? BYTE - Expanded Tooltips? BYTE - Urgent Advice Dialogs? BYTE - Visual Setting Type (0 - User, 1 - Default) BYTE - Visual Effect Quality BYTE - Number of Cars/Sims BYTE - Shadow Quality BYTE - Texture Quality BYTE - Clouds/Fog? BYTE - Waves? BYTE - Render Mode (Software - 0, Hardware - 1) BYTE - Colour Cursor? BYTE - UI Transparency? BYTE - City Detail 1 Byte - Unknown BYTE - Variable Speed Automata? 3 Bytes - Unknown DWORD - Game Resolution - Horizontal DWORD - Game Resolution - Vertical BYTE - Game Texture Bit Type (16-bit (0x10) or 32-bit (0x20)) 3 Bytes - Unknown BYTE - Building Redraw Speed 2059 Bytes - Unknown