KiCad File Format Reference Complete reference for KiCad 8.x S-expression file formats. KiCad uses Lisp-style S-expressions for all file formats. Files are human-readable and text-based. --- 1. S-Expression Basics Syntax Common Patterns - Coordinates: or - UUIDs: - Strings: or - Numbers: (always decimal, no units in file) - Booleans: / --- 2. Schematic Format (.kicad sch) File Structure Symbol Instance Wire Label (Local Net Name) Global Label (Cross-Sheet Net) Power Symbol Hierarchical Sheet --- 3. PCB Format (.kicad pcb) File Structure Footprint Trace (Segment) Arc Trace Via Zone (Copper Pou…