### Altium ###
# Previews Folders
**/__Previews/

# History Folders
**/History/*

# Project Logs
Project Logs*/

# Project Outputs
Project Outputs*/

# Auto-conversion notices
*.PcbDoc.htm

# Access lock file for dbLib sources
**/*.ldb

# Document Local Metadata
*.metadata

# Project hierarchy auto-generated file
*.PrjPcbStructure
*.PrjMbdStructure

# Folder to save each comparison results
CompareHistory/